Let's say we have an image exhibition website that has got a lot of images but next to nothing content. The focus keyword for this website is "Artistic wallpapers". What would be the best approach w.r.t SEO for such a website.

Here are a few things I can imagine:

• Submitting sitemaps ( image and web )
• Having a good pagespeed score.
• Nice navigation
• Breadcrumbs
• sharing the website content on Social media.
• Having appropriate titles.

Having worked on all these things, what can be done if Search engines are picking wrong keywords ( For example views, votes, ratings) Can anything be done so that Search engines don't track these specific items? Also, is it a good practice to have all the pages submitted to Search engines at once?