I like this a lot Mike
Very clever take with so many different interpretations of light in it. That's a very impressive set of scales too - haven't seen one like that for years!
I love the multiple shadows on the tiles and the reflections in the brass have come out very well. It was definitely worth all that polishing.
The obvious kitchen setting also works for me. IMO in this instance it's far more effective than a plain backdrop.
Some niggles from me though :
I think you could do with cropping some off the top, so that the frame stops at the end of the last whole tile. By losing the line of grout and partial tiles I think you'll really minimise that bit of distraction from the background.
And the same for the LHS. By cropping at the grout line here, again you'd get a cleaner b/g, but you'd also make a more deliberate crop of the large shadow on the tiles. At the moment it looks like it's just slipping out of frame rather than it being a deliberate decision not to include all of it.
The other advantage with cropping on the grout lines is that you'll be able to straighten the line of the worktop to completely horizontal without it making the tiles look wonky.
I'm not sure that you can do much about the next couple of things, but they might be something to consider for next time.
I would have liked just a touch more foreground. I don't think that you'd get away with including the reflection of the scales in its entirety, but it would have been nice to have enough space to just catch the top of the weights' reflections.
The final thing on my wishlist would have been to have had some more light on the RHS. Something from above and behind the scales on the right to brighten the top of that part of the scale and the feather. Also to minimise the shadow of the weights falling across the front of the scales. (but positioned so that you didn't lose the background shadows across the tiles . . . if that makes sense.)
Sorry if that sounds hyper-critical. This really is my type of shot and I got carried away with some of the things that would perfect it (in my eyes)