So many- Okay, 1: My favorite thing here is the shirt. It's really cool and looks nice on the character. It has detail but it isn't overwhelming. I do think that the color balance could be better though. The blue is used once, and that's for the top. One of my favorite ways to add color is just to color the heels/platforms of shoes, but ribbons wrapped around their leg (kinda like a work-with-what-you-got bandage since they look like a fighter) or waist would be cool! Same with the pink flowers, pink is only used once. 2. The fighter vibes from the first are here as well, just a more modern and less traditional look. I really love the armwarms and thing around their waist. I'd just work on the shirt. That orange looks great with that character, but The cut is a little boring. It's just a T-shirt. That isn't bad, but as a visual designer, I think there are better options. Maybe a high collar? Cutouts? A tanktop could be cute? I'm trying to keep it practical and modern but change the fact that it's just a T-shirt. 3. My favorite! I'm going to start with pointing out your love of ponytails. All the characters here look great in them, but try different styles! This character is giving me serious Cheshire Cat vibes. I love the ribbon around the waist and the arm sleeve things. The style of shirt is simple but cute. Again with the color balance though. Grey isn't used anywhere else in the design. I think you could make some accessories grey. Maybe add the color to the boots and shirt?