Recon Sketch

This turned out pretty cool .You have a nice seperation of the fore mid and background creating a plausible depth and atmosphere with the dynamic lighting .The contrast of the characters in the front an well as their "bodylanguage" lead into the depth of the painting really well and I think this has a great basis and would get even better if you startet to work out the details .would be more careful with the bright "foam" in the front because the shadows of the characters start mixing with the middle part of the painting whereas they should be clearly seperated like you did it from their shoulders upwards. Good job overall!