Hello people. I've been painting digitally for a long time (and have grown to loathe it). A couple years ago I started working in watercolors and have enjoyed that. Now I'm trying to branch out into acrylics. I like the feeling of oils but I'd prefer not to deal with solvents or the more laborious cleanup during this point in my learning process. I'm making so many beginner mistakes, I'd like to work fast, crank stuff out, and move on every day, instead of waiting days/weeks for oils to dry.
The main problem with acrylics is that they dry darker, but in some modern formulations like Matisse this is less pronounced than it used to be. The first two look very good for your first efforts. The values on the third one seem visually confusing to me. It doesn't need to be realistic of course, but if you wanted you could consider the effect of light and shade on objects of differing local value: