This is looking really good! What jumps out at me is that the haft of that weapon seems really thin.

I'm gonna be too honest, this looks amazing at it feels too advanced for me to give feedback (especially because I'm just in the first stages of learning anatomy). The only thing that does catch my eye is that maybe the rendering of the metal of the hammer isn't reflecting some of the things close to it like the blue and white of the clothes, but I honestly think you can totally get away with that.

I like the colors and you did a really good job with the details of his gold armor and outfit. It looks like it could be an actual character in DND. I think the pose itself is a bit awkward. The area below his waist is good but the angle of his torso and arms don't seem natural. The arch of his back and level of his shoulders seems very tense but his arms are loose so I think you should have either straightened his back to make him look more relaxed or exaggerated his arms to make him look more excited. It's still an awesome drawing, if you hadn't asked for critiques I wouldn't have said anything so I don't think you should make these changes. Just spend more time on gesture at the start of your drawing before you commit to details :) Good luck with your project!

I think it looks pretty good for the most part. The figure/pose is a little stiff but maybe that is justifiable in heavy armor. The main things I can think of (and these are minor): 1) Maybe the torso and especially the shoulders should follow the turn of the head a little bit more. His body is facing one direction and his head is strongly facing another direction with little rotation in the hips or torso. This is not necessarily unrealistic.... Again, maybe this works with heavy armor but then maybe the neck shouldn't be turned so much. 2) The beard feels a little bit too detached from its environment to me. Maybe you can add some cast shadow around the neck? Maybe the beard hair should be reacting to the hard collar of the armor and deforming? Right now the shape of the beard looks too stiff. Again, these are pretty minor points. I think overall this is quite good.

Hey Olga, This painting is really good! The face and all the armor is great. The only thing I noticed is that the proportions are a little off. It might be because of the downward perspective you chose, but it takes away from the heroic nature of this character. I did some drawing to show you what I mean. I hope you find some value in it, keep it up, your stuff is really good :)