[quote=Sherlock Holmes]
Ok, you got the black out of the skin -- good. Now, this is where knowing color theory will help you out, as well as understanding how skin takes light. Firstly, you have to decide where your main light source is: do you want it to be coming from the viewer's perspective? Or do you want it to be the bright lights in the background? Once you decide that, the second thing you have to decide the temperature of your light source. Generally, if a light source is warm, then the shadows will be correspondingly cooler by comparison. (And vice versa if the light source is cool in tone, then the shadows will be warmer.) Definitely grab some reference to help you see how skin takes light in your chosen scenario!Definitely get some reference for the anatomy -- you're having some proportional issues. (Right now his head is almost the size of his entire torso, when from the top of his head to his chin should actually be roughly the distance from the top of his shoulder to the bottom of his pectorals.)Compositionally you've got some tangents that should be addressed:1.) His chin vs. the top rope of the ring. (And also the audience heads lining up directly under it. I'd shift them done some more just to give it a bit of space.) Also, his collarbone/top of his shoulders and the middle rope. (This one isn't as big, but it's still there.)2.) His mouth with the back edge in front of the distant audience.3.) The back of his body with the right edge of the composition. This is feeling a bit cramped -- I'd add a bit of room to the piece here or I'd shift him over so that he is partially cropped out if you have to keep the dimensions that tight.4.) The tops of his gloves (and his shorts) with the bottom of the composition. It feels like you're trying to hide the hands by having them down like that. I'd raise them up so that they're not cropped out, which will also help the narrative of your piece. (What's he doing? Is he getting ready to fight? Is it between rounds? Has he just won? Right now he'd not doing anything interesting -- by deciding what he's doing or is about to do, you can really help give the piece have a sense of life!) You have all that uninteresting/unimportant space painted for the floor of the ring -- bring those hands up and make use of the space!This has the chance to be a really interesting piece -- keep at it and post more progress shots! :D
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What if the light source is all around? given it is a boxing ring?