Modding Request: Toddler T Textures

I found some cute images for toddler T's and would like to create a package of them; however, I cannot figure out how to change the colors or make them look realistic. I have 6 images I would like to use- different color for each and wonder if someone would be willing to create these blank T's for me.

Great at filling with color but that looks "plastic" and can cover other images with my own, but as I keep working on learning how to recolor, would like to have these T's to work with.

Thank you.

twosister42