These are my previous post on the NFT sector.
I tried my hand at starting to work with MagicaVoxel and created a couple items that would remind you of a video game pieces.
I minted them on OpenSea.io that was my first time minting on a marketplace and working with my wallet to hold them in. I have since uploaded them to a gallery which is what the picture is above and I have made them into MarbleCards.
Opensea you can think of as a place to buy, sell, trade art pieces NFT's. If you think of Ebay for NFT. That also lets you upload your digital works, movie, pictures and things you have made to mint them on the blockchain to make an NFT.
My account link on opensea is here