Wow, intense and powerful! Love Harry's curled foot and the way his fingers almost seem to be twitching. Snape is so obsessively focused here -- you've got volumes conveyed in this single image. For some reason, that Harry is blindfolded intrigues me -- of course it's part of the bondage/dubcon scenario, but it also seems like Snape is claiming Harry and focusing singularly on Harry as himself (since his eyes, that connection to Lily, have been covered).