Hello! My favourite of the three is definitely the second one. I find the light/shadow contrast makes that image the most interesting. The dark shadow also helps engage the character in with the background the best in my opinion. I think in the 1st and 3rd image the character doesn't look as engaged with the background. I think this could maybe be improved by adding more of a relationship between the foot and the floor (eg a character shadow - difficult to add now as the floor is so dark already, so maybe lighten the floor in front of the character to match the lighting on the figure). Something else that you could work on is just cleaning up the silhouette a little bit - this would be really quick and make a big difference. The top of the lifted thigh, stomach, and underside of the elbow is a bit untidy - the colour goes beyond the line, and that cleaning up that kind of thing would make it look more finished. Good luck!