I like this. I like the colours (Vegeta is so cute with blue eyes!). I love their outfits, even though Gokuu's shirt has a few too many wrinkles on it.
But, wow, this drawing is freaking HUGE! Can you scale it down a bit? Us guys on dial-up have to wait, like, five minutes for pictures this big to load.
Nice work, keep it up, and try to make future pictures a bit smaller.