For my second presentation, I updated, with blender 3.6.2, a project that I had carried out in 2018 (2.78)… The “Rolex Daytona Rainbow 116595RBOW” watch :
nice modelling and attention to the details, looks really well done however I think it would look much better with a better background and slightly better lighting.
for instance have a looks at these examples.
also don’t try getting everything done inside blender some gradient shadows and blurry or out of focus background are much cheaper and easier to achieve in post.
As I said previously (Focused Critiques), I had some personal restrictions, no typographies, no “photo” images in the background; what’s more, no “scene” !
Finally, I find that the presentations of the style of your first image are very synthetic, perhaps good for a catalog.
On the other hand, I keep your comments in mind, especially the improvement of the lighting and the work outside the blender added in post.