Thanks for the replies, guys.
Instant: As Ryumaru said, those are boxers...as for the contrast, you may want to check the new version, since I know some colours changed because of the file format.
Dhaos: Thanks, I studied a lot of anatomy (not as much as I would like, unfortunately) a few time ago, so it wasn't that hard. I already knew of the forearm problem, I was just too lazy to fix it. Since I didn't know which arm you were talking about (or maybe you meant both) I only edited his right one. You can see the edit below.
Ryumaru: Thanks for telling me that

I made him one pixel thiner and it defenitely looks better!

[the colours may be a bit different now, since I saved it as .gif this time]
Not much to say about it, I barely changed a thing...all of the edits are mentioned above
