the background is uneccessary and so should be removed. the signature is large and distracting, and it detracts from the piece. the piece itself uses dithering where it isn't necessary, and has a very blocky anatomy (and mitten hands). this piece could benefit a lot from proper anatomy (use references, learn the relationships of the muscles you're trying to depict) and through proper shading (following a set light source, and thinking in 3d by shading according to volumes)
Ta certo, vou tentar fazer melhor