Clavico,
Wild Cherry, wild grain, is there a little rot/spalting in it to cause some of those colours?
I like the finial, maybe the top of the capstan (bit under the teardrop is a bit wide) but the curves are all correct, so it holds the eye nicely.
The bit I'm not sure about and it's difficult to see, there is a step in the under-curve of the shape, why, what does it offer the eye, I cannot make out it's place in the turning from the photo, does it look better from a different angle?
I'm not saying it's wrong, but that from the photo, it's reason is not discernibly.