Anime Classics DBZ: GT Goku

I was planning on having Vegeta or Gohan come right after Goku, but this was a much better idea in my opinion. After all, I had to have a reason to draw SS4 Goku on Paint.net, so here we go. I know this is pretty obvious at this point, but Goku's skin tone is darker in GT. Did he get a tan or somethin, seriously.