You're quite obviously a brilliant artist! The costume is utterly perfect, and enough for me to get over the lower part of the body which seems weird. There's a manly edge and a feeling of boosted density to everything, especially the gloves and the mask which give your rendering the edge over others I think.
It's hard to tell from this far away but I love how you did the original Captain America, a lot of people forget about him. This looks so fantastic. I love how detailed you went into it to show the stitching in the fabric.