Quite a step away (up?

) from your quoted repertoire.
A lot to like about it, really.
Two points, though. Your tempo is unsteady - close but no cigar unsteady - and I think it's because you're not quite feeling the pulse, or fear making it too rhythmic - something to keep an eye on.
The fugue is pretty good, but feel free to do more with the individual voices - dynamically and in terms of touch. And work on those places where there a three voices going on - you tend to lose one entirely. Love the trills, btw!
Excellent job, and with a little more work could be really quite something.
EDIT: For clarity, you should probably also specify this is the Dm P&F from WTC 1.