Who is the artist?

[Sin]

I'm not sure if this warrants an entire thread but I was looking for the artist who did these pieces:

Spoiler:

Spoiler:

There are a few other pieces of their work flying around and I really like the style however a google and google image search didn't return any names, would love to see if they have any work I haven't seen yet.

[Z-Dragon]

This artist's name is katsutake, check it out on his pixiv artworks: http://www.pixiv.net/member.php?id=1072599

[Dr. Machismo]

Yuck, Goku looks too skinny in the first pic.

[Ajay]

Yuck, Goku looks too skinny in the first pic.

Because accuracy is clearly the intention here.

[Sin]

This artist's name is katsutake, check it out on his pixiv artworks: http://www.pixiv.net/member.php?id=1072599

Thanks a lot, really nice to see the rest of his DB and non-DB work!