Bulma looks fine.
Sure, her hair color is wrong. So is the length of her hair. Her eye color is also wrong. And her facial structure doesn't really match Bulma's. But the most important part about Bulma is that she's a female. Every single other detail is just unnecessary.
Same with Goku.
Goku is just a guy who creates energy balls. Who cares if he's skinny, white, has short hair, and looks like a pothead.
You guys are WAY too uptight. Geez.