This is excellent...really love the character. #45 and #48 are my top choices from your work. I will study the designs over the next 24 hours and provide more feedback...but honestly, I'm not sure what I would change. Perhaps a treatment in purple or royal blue. Otherwise, I think you really hit the mark.
Looking good. I'll come back to you with more comments if needed, but I think you've got the design where it needs to be. I'm bouncing back and forth between the purple and orange...I guess that's a good thing to be wrestling with.