I'm with everyone else here—aiming is just a crap shoot; either you're lobbing darts blindly with Brickell, or you're threading impossible needles on a strict time limit with Ezili. To get to the third level in a set, lose, and have to do the first two difficult levels all over again might be a bit much to ask of your players. (Also, Brickell's second art has zero differences from the first, which is disappointing for all the work required to get there.)
'A' for effort, but right now, 'E' for overall execution.