I am sure they will sell. People are mostly selling them on the Tezos and Ethereum chains now, but I am positive Hive will soon follow. The problem with forementioned chains is that although there are buyers, there are also quite a many sellers. Not easy to actually be seen. On Hive, especially on Lensy.io there are not many sellers, so I will have the first-comer's advantage.

I will keep tokenizing my photos there, so if someone buys something there, it might as well be mine.

If you want to try NFTs out, there are at least three places on Hive where you can do just that; Lensy.io, NFT Showroom, and Tribaldex OpenHive. The former two are based on and list prices in the HIVE currency, whereas the latter, Tribaldex uses Hive for prices, but asks 100 BEE for an artist to be whitelisted. Both Lensy and NFT Showroom only need you to apply for whitelisting: