Freelance: Jewelry animation - testing, refining

Here are the very first test renders with textures and lighting:

There are several issue with this one, although this was created 1 day after I`ve gotten the project, so it is a good swift test so I know where I`m at. Right now, the colors need to be adjusted as they don't completely match those of the reference, the material is a bit off as well.
The ground plane is too yelow/brownish as well and the bow on the right box is too thin and lifeless.

After multiple discussions with the client, the final animation was approved, which then got showcased on their website as well.
Final animation: