Lovely clean, precise sculpting of face, helmet, armor and uniform! Excellent armor!!! I wish I could sculpt even half as cleanly as you do!
It's a very unusual pose but I like it and I think it's do-able.
Maybe it is the photos and the angles the photos were taken, but the legs and feet just don't look right to me. The feet look too long, even with the unusual boots. The flexed or bent leg looks about right, but the other leg would be bent a little also, instead of straight as it is. Also
Suggestion - Just try to pose yourself as close to how your figure is standing as possible. I think you'll find you're off balance and you may not be able to stand like that very long. If possible, use a full length mirror. Also, have someone take a picture of how your trousers fold and crease, particularly at and behind the knees, etc. I've found this approach helpful to me. Hope it works for you!
You're almost there! I like the figure!
All the best,
Dan