I am a digital Art artist, and I am new to the NFT world,
I have not sold anything yet and I would love your opinion on my NFTs
are they too expensive?
Yes they are. If i was you and i would never pay those pictures for 0.1 ethereum. That's overvalued NFT. Sometimes there was a guy who has been pricing their NFT with non sense price. This kind of NFT didn't have value like rarity, utility, and many more. You must compare it with the uniqueness of the picture with the price as well. I guess that if anyone would be able to mint NFT by stealing it from various sources. This kind of NFT must be avoided. You will be wasting your money if you have an intention to buy such NFT. That picture must be worth a few dollars. You can ask maradona's fans and ask them about that. If you wanna try to sell your first NFT and you must have started with a low price to know whether your NFT was getting demand from the market or not. People will be seeing your NFT was overvalued NFT. It has no utility, rarity, or uniqueness.