fine art photographers is Highly competitive so you probably won't rank for that any time soon. If you go with weaker keywords in the Title and page copy, then you will rank for those and get some backlinks. Backlinks will strengthen your page/site and then you can start to rank for more competitive keywords.
Using the alt tag for generic competitive keywords will help build that ranking for those keywords as supportive keyword phrases.
Try fine art portrait photographers for a title and work your way back once your page has authority.
It is like when you search for something. You use the direct search query then modify it to narrow the search.
With webpages that do not have any authority, broaden the keyword to start, then narrow as you grow strength. I suggested to use an underlining metric such as the alt tag to start the keyword ranking for more narrow phrases.
When you build links manually, build them for the narrow keywords. Organic links will naturally use the current Title or the sites URL, or category. Hopefully.
Subfolders (categories) rank well as long as a) you have inbound links with good anchor text b) that landing page is keyword optimized.
This way your home page, which gets most of the links, will have fewer links to in-site pages and thus they will pass greater link juice. Then those category pages will have links to deeper pages and pass juice to them.
This is good structurally from a navigational perspective and from a linking perspective.
I hope that helps