Caption on varation images + variations in title

Im working local, so i dont have a link.

I would like to see the variations in the title on the product page. They already show up in shop page. But when i click a variation combination, then the main product title remain on product shop. I would like to see Variation name instead of it.

second thing where i run into is that i have a lot of variations but all have the same image. Can i add somehow the varition titles as caption on my product image?

many many thanks for helping ??
Harry