Nice timelapse, great knowledge of the tool, eye for proportion, awesome eye for color, light and shadow but he has absolutely no skill when it comes to the background 
Personally I´d not have expected that result from the scribbled black lines he started with 
No, that’s how you use a Wacom Tablet.
Lol, yeah he had me until the half-arsed background Is that meant to be Karen Gillan?
You see that it´s photoshop, you don´t see that he is using any tablet at all, so your statement is a wild guess
There are plenty of artists that are skilled beyond doubt even with a mouse and MSPaint.
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No idea hammers, could be any girl 