They are good. Its a question of taste. Do you want to be more natural? these look like a super hero.

This is just a feeling I have, but have you devoted much time to really studying the skeleton? I think it could give your work some more weight and solidity. Michael Hampton's figure book is great for that

thanks to all your feedback guys im really thankful that all of you stop by and critique my studies, as for now im gonna start improving my work and follow your advice, thanks again. :)

I really like you work, it has a good sense of form and structure. One thing I’d like to say is that I think your drawings would benefit from having some more half tones. Because the dark line the separates the line side and the dark side feels too much like a hard edge. I think that that the drawings will pop even more if you can some gradations to your drawings. But nonetheless great work, keep it up!

Very nice work, Alex! You have a good sense of form and shadow. Keep it up!

Hey there! I think your simplification tactic is an excellent one and I think you should continue this method in the future to memorize things; soon enough you'll be remembering it all from imagination! I recognize my own studies in you based on the little self-critiques and arrows pointing! That's always a great practice to have and is hugely important for awareness. Since many others have given advice based on the drawings, I'll veer off a bit and suggest that your technique/materials might threaten to let you down as you get into more shading and rendering. It looks to me like you're using newsprint and charcoal. Depending on what type of charcoal you're using, you're more likely to get "Streaks" like on the pectoralis major area. Or, alternatively, it could be the way you're using the charcoal itself. Having streaks isn't a huge problem with a study, but in final pieces, you'll want to work on blending or filling in the areas smoothly so it doesn't look like the skin is striped. These are truly great and I hope you keep up the good work! Welcome to the community and I'm glad you took the step to show your stuff!

i am glad you are sharing your work. It can be really scary to share. Your hands are really working. As for the shading I think you have to much half tone and not enough highlights and shadows. Sometimes it is better to not shade the entire form and let the mind of the viewer fill it in. Hope this helps.

You have really solid form and foundations in your drawings. I would consider being more confident with your shading. It seems like you know where the shapes are but only put it in loosely. Just upping the confidence and putting the shading in solidly would add a lot.

Your drawings have form and your lines look confident. My only suggestion is I think you could go darker with the shadows, similar to the level of contrast on those smaller arm drawings you have.

I think the work you have here is great. I would try using different reference to practice putting into practice what you have learned on someone with a smaller muscle structure and I would try adding in contour lines to help drive home the form of the arm and how everything over laps. I hope this helps. Keep it up! Also check out Steve Huston he would be great to study from to complment what you have learned.