My perspective is one of an SEO.
I would never recommend to anyone that they have separate websites.It is very difficult to maintain/optimize one website, let alone more. You must consider your time investment. Will both sites truly have your focused attention?
I imagine your homepage focused on displaying your lovely photography. Making all the buying info for each one easy to find or see, ie animated modals on hover. That is a stunning visual.
Buyers will see things they want to buy, students will see things they want to create.
In SEO we talk about siloing. It's a hierarchy thing.
You create silos starting from the navigation on your website, one for buyers, one for students. Both silos are available everywhere on the website. The two silos even link together, somewhat. But mostly you build links down through the silo. Buyer stuff links to buyer stuff. Student stuff links to student stuff.
This will send a nice clear signal to the search engines.
Hope that makes sense. Call me if you want more detail.