Maybe not completely disappearing, but he's next to impossible at times. 1:02 is a great example, you can't even see the skater.
Your fisheye is harsh sometimes too, I'd stay away from the 10mm. Like the first line, and again at 2:42... they look cartoony, for lack of a better word. I personally prefer realistic filming, like the lines at 1:50, 2:03, 2:30 look great.