This variation by the way should be the same tempo as the Aria. Do you play the Aria this fast?
I think it needs more character. When you have several bars of sixteenth notes, you have to get heavier here, lighter there, as you see fit to create a certain style, or a certain image.
One of the things that is so wondrous about Glenn Gould is that he gives such a vivid note-picture or imagery of the music. You feel you can see the music dancing in front of you. The trick to this is using natural weight to make certain elements of the melodic line heavier, and certain lighter; or to make certain registers heavier, and certain lighter; that is the art of playing Bach on the piano.
Looks like you have good fingers!
Walter Ramsey