So occasionaly i try and do studies on some of my favorite artist's work. Think it's a great way to pick up things from their style aswell as 'get in their head' and understand how they work. This Orc is a study i did on Laurel D Austin (who is my favorite artist). You can check the original sketch along with her process on her instagram. https://www.instagram.com/ldaustinart/
Really like these two sketches! The musculature on the guy is very impressive, and the girl's expression is super cute. An i agree with @achronic your drawings do remind me of Joe Madureira
Check out ''Bridgeman's complete guide to drawing from life'' .It's my favorite book when it comes to figure drawing and anatomy. I learned so much from it, including how to draw noses. I just copied every single picture of the book again and again to the point that i got pretty comfortable with drawing most parts of the human body. Marc's video is also pretty helpful. https://www.youtube.com/watch?v=waRIdUDvIQ4