This is just an example if you want to have a lot of images of each category (paintings, fungi etc) – say more than 25-30 in each category. Then each category could have its own page like this.
Items could also be made available to purchase online.
2.
There is also a simple gallery from FooGallery , the free version. There are several different free design options for titles etc. The filterable option (like the one above) is US $9/mth; note that there is a US$ 13/month option which dynamically (i.e. not manually) changes them into ecommerce filterable galleries , if you wish to sell prints, paintings etc directly from the image…