Let me take you through a small tour on how I did this image.
Final Result
This painting was done on/off during other projects & assignments from college, I think time allocated was maybe around 4~5 hours?
Anyway, let's get to it.
This may look like a joke to you, but this was really how I started my thumbnail, pretty bad silhouettes. But because I was impatient, I just treated this as a warm up and jumped into the real thing. Not the smartest thing to do if it was a commission, but since it was practice, so hey.
I jumped into the painting, got the rough silhouette of the tank, then pretty much did a followup with Cap, then well, during this period of time and much fixing of the foreshortening, I wasn't able to tell what was wrong with the image. Lucky for me, I sent this image to my neighbour[Calvin Chong] for critique, he pointed out that the hand looks broken and sent back another image showing how it should look like.
So I continued to fix the arm, using the lasso and moving it around. I figured something like that looks about right. But something was still out of place.
So I went through some books and images of anatomy, then I realized that I was missing some gap between the neck and the deltoid, with that, again I used the lasso tool and moved the arm further away. I also noticed other minor flaws like the hand being too big, eyes a little too far apart and so on. As seen with those little green notes in the image. :D
Here's what I gathered, and why the hand felt like it was broken. Notice the green line, how in the first one it flows and the second[right] one, it breaks or arcs.
And that was how I made the image. Pretty big changes from start to beginning, this is really due to not having a solid foundation and lack of practice. I really need to buff up.
