Type of product to put by vendors - by Numéro Onze Wolfpound

ok, so woocommerce propose sell by picture a product , or a downloading item.so my site is for artists all over the world, for purpose to stop 50% fee take by gallerist and give all products by talents to the owner of the talent.so for the painter or sculptor or photographie  can use your page with no change. sell by picture is ok with chipping, blablabla. so for them it s ok.but with downloaded product like music or book, i need a page product to put on selling, a page for this two categories. because same problem, spotify or soundcloud enormous fee on talents .anyway, i just need duplicate, (i think like this maybe i m wrong) and change for music, description painting like 20x22x20 cm by 22 title or book 2000 pages, and the downloaded product music or book.so hope you can tell me how to do that.