Yeah, guys and girls definitely have a different line dynamic going for them. And I completely agree - I find ladies much more rewarding to draw... I hope to get to the same point with guys, but we're talking working against years of drawing only ladies.
The digihalo is a really nice touch... and do I spy that brush I shared in the background? XD
At least you already draw dudes well! Though, if they were more interesting to draw I'd probably draw them more and maybe improve. I dunno, it's like drawing a building vs. a tree. Rather draw the tree, more fluid.