Wow I really love the ideas you suggested.
Bridge Styling
The badges and bridge styling is such a cool thing to be honest - since the bridge is the icon of the game, being able to stylize and colorize it would be sooooo good! If someone wants a pink bridge, they can build a pink bridge. If someone wants a sunflower bridge, they can build a sunflower bridge XD. Can even go crazy with ice bridge, fire bridge, glass bridge. I'm 100% going to do this haha!
Multiplayer
A PVP mode is actually pretty sick! I also like the idea of collaborating. You've convinced me to give multiplayer a go. I will experiment on this as soon as October.
Moving
Could you let me know why you might want to move buildings? I could add this but my main concern is it is easy to exploit shields by moving them to the front after each storm and have infinite protection haha.
I have added your suggestions to my notepad. Also thank you for the support and encouraging words! :D