Adding wall decoration products to wall background photo IN BULK

Hello,

PLEASE READ EVERYTHING AND DON'T REPLY IF YOU DON'T KNOW HOW TO DO THIS **IN BULK**.

We have a website that sells metal decorations to hang on walls, with over 5000 products currently live on the website.

We want to give a simple preview of how each product can look like on a real wall, so we need someone that is capable to do this in bulk, generating a preview image on the real wall for each of the products.

We'd like to have a preview with 2 different sizes of the same wall decor, so 2 images per product, one for the smallest size, another one for the biggest size.

We have partly done this for circa 500 products, you can see the example attached, with the original product image and the final wall image like we want it.

One important detail is that the final wall images need to keep the exact same name as the original product images they refer too.

So ultimately, we need a photoshop (or similar) specialist who can do this bulk edit quick.

YOU NEED TO BE ABLE TO DO THIS IN BULK AND WITH QUALITY.
(We've add other freelancers applying saying they'd do one by one, or sending something extremely pixelated or poorly sized, we don't want this)