Great photos Ubi... and what watches!!! Is that 16610 a gen?
Technically the pics are very good. Personally, I would probably use a bit more light (to bring up things like bracelet brushing details, etc). But nothing wrong with darker pics, either. I guess it's more like a taste thing. The granite is your trademark, but sometimes colorful surfaces can also make wonders.
Keep 'em coming, always love your pics mate! They're very artistic and you have developed your own "style".