Absolutely fascinating! Great artwork.
The Class F is a neat design, but it would make more sense if the TOS/TAS universe had a little more variety in small, embarked craft designs.
Have you given your new baby any class nomenclature yet?
Since you are designating this a base/station-based craft, I take it you don't regard it as compatible with the Enterprise's turntable-elevator, correct?
You traded the long-and-thin nacelles of the Class F for short-and-fat ones for this ship, right?
Love those details. Looks familial with the Class F while not being too familiar.