This is pretty good. But here's a few pointers.

His right arm in the first one with the towel doesn't really connect well with his torso, particularly in the bottom. With his arm raised like that his shoulder should be raised so it matches the bicep's raise. The elbow on his left cold be more prominent too.

In the second one his right pectoral should be bigger, nearly obscuring the arm behind it. It's making the arm look like it's over lapping the torso. His right arm is also too long. And his neck is a touch too long as well.

The bottom drawing is pretty good. Nice back anatomy. His left bicep looks too big, especially since his arm is extended. It shouldn't be that bulgy.

I'll make notes of that... Thanks for the constructive commentary :)...

On an additional note, his face, particularly the jaw, could be more broader to match his build. ;)

ahh... right. Thanks again... I'll keep those in mind for future works...

Oh crap he looks like Vash from Trigun ^_^! Nice work :3

Does he really? Thanks for the comment! :D...

Especially from the manga, like his body type and his little face ^^!

*giggles*... come to think of it... yeah, they're similar in those aspects...