Question
Should I have a website that showcases the artwork itself (there would be too many) or should it just be a simple website explaining what we do, the kind of art we offer (paintings, prints, sculptures, commissions) and then an enquiry/request art form where they answer a few questions on what type of art they want and we get back to them with a few options?
Answer
I'd go with a mixture of both to maximise the benefit of your time invested.
I'd recommend setting up a website that presents the top 20 pieces of art (or styles) that drove 80% of your revenue over the last year.
Finish with an enquiry/request form.
Perhaps also consider giving away some piece of content for free (e.g. 2021 lookbook/top 10 design tips for accessible art) in return for their email address or phone number.