Need help identifying Artist/Painting

I have a large 5ft by 6ft painting that I would like help identifying. I have found a couple of prints online signed by J. Ruiz however the signature on the painting I have doesn't match. The painting was purchased in Spain in the 70s.
Here are the prints I found online.
https://www.worthpoint.com/worthopedia/antique-oil-painting-mountains-1720983228

https://www.mercari.com/us/item/m46147421257/?gclsrc=aw.ds&&utm_source=google&utm_medium=cpc&utm_campaign=16716583189&utm_content=t0&adgroup=141827811544&network=g&device=c&merchant_id=366260874&product_id=m46147421257&product_id=303751648073&gclid=CjwKCAjw7IeUBhBbEiwADhiEMdR2VBB8-1YQ3n-P1--XmeJrCIwaEzipHc6Qh4_FvTR7VYITfH4xpRoCnOIQAvD_BwE

Here is the painting I have and the signature:

https://imgur.com/a/pyeb05X

Any help would be much appreciated.