Too many colours to decide!

So here I am 205 days to go.... and I have so much planned already! The only thing I am really stuck in at this point is colours! So far everything is every colour but will that be to much?

My Mom keeps trying to tell me that I need to pick a few repeating colours to tie everything together... but its a carnival theme... shouldn't it be full of colour? My standard reply is always that repeating theme or vintage carnival is what will tie it all together... but am I just hopeful that it will?

What has me doubting this decision to go with a rainbow colour scheme is how difficult it has been for me to pick a bridesmaid dress. Since I really don't have a specific colour to look for, every vintage style dress is an option... Maybe picking one colour would make it easier?

I'm thinking the electric blue of this Alfred Sung dress would compliment the blue of my veil...

But I also love the dusty rose colour, it reminds me of my grandmother. The sparkles would look lovely under the twinkle lights of the dance floor.

I have also found a vintage Vogue dress pattern that I am in love with... its just a matter of selecting a fabric... Gold? I have a lot of gold details throughout the decor....

Either way I should decide on this soon! We can't really pick the groomsmen colours until we know what the girls are wearing....
Maybe girls in blue and guys in gold??