To me the two things that immediately jumped out is the lack of water reflection of the white female body in the center, and the left figure looking a bit wonky.... Otherwise to my eyes this piece looks overall very solid. I especially love the tone and lighting of that male figure. This image on first glance looks like it has the look of those classic galley-ish paintings. Could be nice to polish a bit more maybe? like the crop could potentially be on a wall or something :D