Don't overdo the dithering. I like the second guy from the left out of all the wips.
As for the CGA palette, I highly encourage you to at least throw some gray in there. Gray's very important in CGA works. It's there to redux sat so, you know, my eyeballs don't burn out, heh.
Yeah, it looks perty in any case. Honestly, you should try and start with easier stuff. CGA's perty hard, and not alot can pull it off with some success on their first try, so greetz for that. Haha.
I'm no expert on anatomy, but something about that bugs me. Maybe it's because I live in America and think of Baseball when I see Cricket.