Yeah, I'm not very good at drawing Goku's face in particular for some reason, so I was trying to kind of hide his features behind his hair, but didn't quite pull it off.
The hiding would have worked if I wasn't so impressed with how well Chichi's face was. If you check out DeviantART, a really great artist is Bri-chan. She's done pieces very similar, maybe you can get some ideas. Just a suggestion.