Hmm... his forearms are quit long. I see that you're trying to use perspective, but you're doing a bad job. I'd try getting down the figure's anatomy perfectly without perspective first, then try some complex positions without perspective before trying anything like that. Skipping steps is never a good thing.

As for the overall proportions, it's all a little bit off. It's good to have a unit to base the length of the figure off of, many people like to use the head. Just take a look at this picture I scanned off of a worksheet I got in my art class at school...

WARNING: THIS IMAGE IS COPYRIGHT THE GREAT UNKNOWN PERSON WHO MAKES WORKSHEETS FOR SCHOOLS. THIS IS PROBABLY ILLEGAL, SO ANYONE THAT IS VIEWING THIS IS EXPECTED TO HELP BAIL ME OUT OF JAIL.
[img]http://www.foxmage.com/Proportion.gif[/img]

And pageclaim.

Thanks. I hate you, but thanks.

*turns head sideways, confused*

What is it?

Isn't that obvious?
It's a pie-borg. You will be assimilated.