@fudgecat congratulations 
We kept out own wedding very simple, no fuss, 35 guests, no relatives just immediate family and friends.
@Squigglynoodles I got married back in the stone age. Depending on how close you are to your future MIL etc now is the time to find out what their expectations are so everyone lays their cards on the table. If you can have the conversation then you need to say that you will take their wishes into account but obviously there are 2 families that have wishes so that is all they are, wishes. My MIL expected me to invite their friends who lived abroad, Dh hadn't seen them in 20 years, I had never met them and they were surprised when we said no. We were funding the vast majority of it with a small gift from PIL and my parents.
My bridesmaids were in burgundy velvet (Autumn wedding) my Mum wore a muted gold suit which was gorgeous and my MIL wore a burnt orange dress, also gorgeous. So complimentary but not the same colours.
Before covid I went to a wedding where Dh was the best man and I was given a corsage to denote my connection to the groom's family which I thought was truly lovely.
Both my parents walked me down the aisle as they had both raised me, my Dad looked after us whilst my Mum worked a twilight shift so very hands on.
These days you can make a wedding what you want it to be. Just have the day you want only compromise if it isn't going to make you regret it years later.