the speed blur will change. it just temp, and like i said, wonderwoman will be infront of the blur, so you wont see it as much, just background stuff
as far as tutorials. first step, find a good photo refference for practice with alot of contrast. to be honest, best would be black n white.
first, make sure your on a new layer above the one with the pic, and use the pen tool to make outlines of all that is black, i dont use black on black as im making the shape, usually red or a different color,so i know what i did.try to use as least amount of points as possible. using the anchor points to shape it and bend the lines to make it the shape you want.
try that first, if you have any questions, please ask. im glad others are showing an interest.