Peach could be nice and would be easy on the eyes. As I said before, take a look around and see if you can find a colour scheme you like
.
If they are the important characters who should be represented and you have pictures for them, then yes. Ideally we would like to see individual pictures for each character you would like included. I have no idea who is who but I presume the eight in the current graphic are the eight listed
here? I have no idea if there are better quality pictures than the ones on there either. There possibly are from individual galleries for the actors
.