A few months ago, I created an NFT collection in the Algorand Blockchain. I tried to raise the artistic expectations of the collectors, preparing a quality layer (but manually) generated collection of 100 alien female characters with hundreds of different attributes, hairstyles, piercings, uniforms, hats and helmets, alien races, and thousands of facial features.
I think it was a great job, even if the collection's success was not remarkable.
This video introduces the 100 primary characters (then there were some special unique versions).