Midi me

Firstly I apologise for not blogging much this week. It's been a bit hectic and I have hardly been home. I'll try to make up for it on the weekend.
Now back to the subject on hand, midi dresses. I was looking for a dress to wear to a wedding and came across these lovely midis on Asos. The bird dress is my favorite but is it too casual to wear to a wedding?
Also, I love those tan boots but have yet to find which style they are.