Very nice build.
Design, price and part fit aside I can see possible uses for this. It's essentially a faux medieval tower, so why not use it as such? The Victorians were mad keen on mock Gothic, mock Romanesque and mock medieval. It could be the tower part to some nouveu riche industrialist's estate, the clock tower on a civic building or church or just a stand alone folly plonked on the grounds of a stately home. All the silly decoration, misplaced arrow slits etc then work really well if the conceit is that it is a faux medieval structure. That blank side with the curving arch would look better with a clock face attached anyway.
Would be a definite asset for people doing Victorian era games or even VBCW.