Is this dress too casual for a wedding?

[PorkyandBess]

It's an informal do (2nd wedding for groom), so register office then party.

I tried this dress on today and really loved it. It's not a short on me as I'm only 5'7.

I would wear it with suede, taupe shoe boots and fake tan on my legs.

Too casual or not?

It's gorgeous and not too casual IMO. Carry a structured clutch to make it more formal.

I think it's perfect for the type of wedding you are going to (that's not meant to sound judgey - but somehow it does :) )

Ooh, just what I wanted to hear!

I'm going to go and buy it. It's £10 cheaper online, but ime, H&M are so slow to deliver - I can't chance it.