Hi,
I worked a little on the left one:
I made 2 versions (one that does have a "hat" and short pants and one that doesn't). There is still some work to it, but I'll post you the start.
I was also thinking that maybe we could include a pokemon. The ones that match the theme are chatot and octillery I think. I think octillery would match good with the similar "hat" I gave the left one.
Ps: also I wanted to remove the red thing on its sweater, but when I made the arms it looks like a tattoo, so maybe we could alter it a bit so it looks like a cool tattoo.