Should I give my honest to God opinion or just keep quiet?

It’s not your wedding. When I first saw my SIL and brothers wedding invites they were similar to what you are indicating here. Did I love them? No, very different to my style, but was it any of my business. No. Therefore they carried on with what they wanted on their day and, in fairness, their day was just as beautiful and wonderful in a different way to mine and I wouldn’t say either was better or worse. Let her do her thing.

A friend of mine is a wedding photographer and I sometimes help out, so I get to attend lots of weddings.
The main things that stand out to me are the dresses and the food.

She's worked a couple of events featured in 'my big fat gypsy wedding' and the dresses in many traveller weddings were truly horrendous (to my taste anyway). Neon day-glo mermaid tails and crop tops and so on. It looked more like a drag queen convention.

Another bride wore an enormous bright orange number which reminded me of Buddhist monks, and the groom was wearing some kind of Indiana Jones costume (I didn't ask 😅)

A few weddings have had truly awful food though. Think bad BBQ, poor quality frozen burgers and chips. And they'd spent a fortune on the wedding, so there was no excuse to serve such awful food.

Those are the things I'd remember. Not the wedding invitation.

My first thought was 'ohh, a real-life Hyacinth Bucket and wondered if anyone else has thought the same. I wasn't alone 😁

Endure? 😂

She's asked your opinion, you've gave it, she doesn't like it, now let it go!
It's her wedding, not yours. If she's happy with her choices then you should be happy for her. Everyone has their own taste, hers may not match yours, but that's ok. Be there for her for the big stuff, reassure her the wedding will be amazing & help her not stress about things.

Leave it alone. Sometimes we are so used to giving opinions because the other person doesn't say anything and we sometimes mistakenly take this for acceptance and forget about the other person's feelings. She will probably have enough stress trying to plan a wedding. Don't be part of the stress.

Also very that you can subscribe to Debretts to answer those urgent etiquette questions- £4.99 a month!

It literally says there are no set rules and right or wrong styles on that page.

The traditional ‘stiffie’ approach isn’t the only way.

Ach, it's the invitations, not the dress or the venue (or, you know, an arsehole for the groom). Not important; nobody remembers them, and they're not in the pictures. Accept her taste may sometimes be different from yours and forget it.

Please back off before this causes a rift. It is not important, I agree with people don't remember wedding invites. She doesn't need negativity at this time. She needs you to be there for her and help her with any stress, not to cause it

Hrft
Here's the crux
1.You have wildly different ideas of style.

1. What's important to you isn't the same as what's important to your DSis.

Helping doesn't include changing someone's ideas, it involves achieving something how they'd like it done otherwise it's interfering or controlling.

If she's marrying the right person for the right reasons doesn't matter what you think, it's her wedding, let her be loud and mismatched and unstylish, love her for what she is.

Can you ask her if she wants your opinion? She will know you are very different. You could say something along the lines of “it’s not my taste but if you’re sure go for it”

If that was as true as you think it is, you wouldn't have asked the question here (... and got the responses you deserve!).

If you have to ask then…don’t.

I'm not sure if this is a parody or someone role-playing as Amanda from Motherland

I just hope you don't tell her that her choice of dress is naff!! You're coming across as an absolute control freak tbh. Just because people compliment you on your 'good taste' doesn't give you the right to tell your sister what she should and shouldn't have.

Ewww. Imagine being that person who judges defines anyone, let alone their own sibling, over their choice of wedding invite. Which, by the way, no one cares about and ends up in the bin anyway. Wow.

You may THINK you’re not coming a place of control BUT you already told us that this type of behaviour on your part is regular.

you have already described your sister as slap dash and low effort

it is highly likely you have put yourself into the role of telling her what she should do, think, wear - everything

well now you know that you’re controlling. Also belittling. That it isn’t your place to continually do this type of thing to your sister.

listen to the multitude of opinions that you asked for. Time for some self reflection too.

I like the flower border. I have good taste. Just different to yours. Let her do her.

Mind yourown business and keep your mouth shut

I like your sister’s invites. Maybe I have “poor taste”.

I think let your sister make her own decisions on this

If she asks for your input or help then you can give some options you think would be good.

But otherwise leave her to it if she hasn’t asked.

Nobody needs wax seals and ribbons on a wedding invite. A functional when and where is fine! Leave her be. You sound very judgy and overly concerned with appearances.

She literally told you "who cares"...Maybe she means it? I mean really who does care about the wedding invitation? Think we may have printed ours on A4 paper and/or emailed people. Honest to god the ridiculous 'rules' and expectations about weddings are not compulsory. Maybe you should take what she said at face value and let her not care?

Are you sure she’s actually been happy in the past with you saying things like ‘you can’t go out in that you look hideous’? When you say there’s been ‘no fallout’…. I had a friend who used to offer this kind of ‘helpful’ ‘honest’ feedback and at the time I never pushed back because I wasn’t particularly assertive and also tbh wasn’t used to people behaving like that, most people don’t, so I guess I didn’t really know how to handle it. So I guess theoretically maybe my friend thought it was fine and there was ‘no fallout’. But I didn’t appreciate it, and now that I’m older, if someone gave that kind of feedback to me I’d let them know pretty quickly that I found it rude and it wasn’t welcome. Maybe your sister’s reached that place?