Hey-ho, awesome drawings Acktoo. Love the way you do eyes, going to have to learn to copy a little so I can do eyes like them, if you don't mind. The hair's also awesome, plus amazing accessory attachments. As in those wrist bands, how you've got one character holding stuff like a bomb. Also see them becoming more 3d since your drawings in April, really, even though I've only noticed you now and comparing your work from then on the post. You've improved amazingly.
Do have criticism though for the purposes of improving my own artwork and hopefully yours Acktoo, if you don't mind me saying. I think the biggest issue is that they're not 3d enough. That's my opinion anyhows. You could start shading them. Putting in a little black so it isn't obvious it's on paper. Probably have small backgrounds behind, just something simple like small brick layers or a cupboard with a vase pot on it. Only a suggestion anyways.
Hope you found this to be valuable?