It's a nice action pose. The outward hand looks a tad fake. The spaces between each finger should curve, not be so far apart and not be so flat. Try looking at your own hand for reference.
Thor's right knee seems squished together so much that It's shortening the leg. As I see It you have the top of the leg running high and then It just drops down to the knee where as the leg should continue on for just a little bit. Hope some of that helps.