hello dear friend @stef1 good afternoon
I am not an expert in art, but I believe that making portrait paintings is not easy, especially if you want to achieve a certain realism in the work.
What I admire about your works is the realism that you give to the eyes, I think that is where they fail a lot, it seems to me that the face in general can be achieved, but the eyes and the realism there is very important.
Thank you very much for showing us the step by step of the work
have a beautiful night