Here's another update after working on it some more today. Happy with how Merlin's turning out, but need to go do some practice with dragons, since it's been so long since I last drew one! Hoping to hint at a Harley parked just to the right as it seems to be the sort of ride he'd have

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Everyone else's stuff is looking cool though! Causelm: really like the idea... I can totally imagine magic coming in handy as a chef (could do with those kind of powers in my own kitchen). Love the expression and the placement of the various items forms a nice composition! Hope you're going to give his pants and shoes a little more love.. the folds in his pants feel quite lax, and a bit or personality to them would only add to his quirky character! You might also want to potentially darken the white of his jacket so the blue reflected glow comes out brighter, like it is on the rest of him.
Jsolorzano: for some reason your images aren't showing for me anymore (were earlier today), but I think you went in the right direction with the change of pose! It gave off a nice confident air that a DJ would need, especially one as pyro-technically advanced as Merlin! If my memory isn't playing tricks on me (forgive me if this isn't the case) I seem to remember thinking the folds in his leathers could ahve done with being a little more inconsistent.... a lot of them seemed to be the same size and distance apart.
TestosteronMan: Cool idea with the bum thing... and I'd love to see him in situ.. on the street with everyone just passing him by while he conceals himself with magic. Nice dramatic ligting too, and defintiely a darker feel over all for merlin to take.
Alterici: I instantly thought of professor too... just seems like he'd be a natural fit! Definitely like the whole multi tasking feel to it.. i wonder if there might be a better way to compose the image so you can still see everything he's doing, but see more of Merlin himself... viewers would get more of an emotional kick from actually seeing it's him from the front, I think (Less you have specific reasons, in which case ignore me) - like if you were to move the camera round to the right, and look diagonally across at the board, which he'd be sat more in front of?
Good stuff all round!