work in progress
Ow. Either he's got a rubber leg or is in serious, serious pain.
the lower leg angles (if at all) away from the center of the body. Femur dips in a bit, lower leg dips out a little bit. His torso looks skewed with his neck and head positioned too far to the side, and from the way you're drawing all the muscles it looks like you've been taking most (if not all) your figurative information from comics.
Don't do that.
Look at and draw real people.
I would echo what Jason said, and though I'm still learning the figure, the transition from hips to thighs is particularly strange to me.
The elbows should meet roughly at the bottom of the ribcage, but that leaves a lot of room between the bottom of the ribs and the top of the pelvis, here... but really his upper arms look very short.
Here's the worlds fastest lasso job, it's still a pretty unfortunate pose, but the proportions are tidied and the anatomy kinda reads... hope this helps
The overall proportions and likeness are off to a good start. As mentioned above, the anatomical details (muscle structures in particular) could use a bit of fine tuning.
One thing about Spidey is that when he's swinging through the air, you can make his limbs a little rubbery. I think things such as the inward turned toes don't work as well with a standing pose.
You might consider moving the elbows away from the torso a little bit to loosen up the pose. Maybe stretch the chest and abdomen downward a bit, and widen the stance.
Flipping the image horizontally will help you view the pose with fresh objective eyes. In the attached pic, you can see the original image, the flipped version and my quick and dirty stretches and drawovers.
Hope that's useful.
Nice rendering but pose is just not working. I suggest you take PSIBug's suggestion and get to fixing.
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