There are several classes of people buying NFTs:
>rich retards, particularly those who got rich from crypto and want to show off
>poor retards who heard about it and don't want to miss out on what rich retards insist is bitcoin 2.0
>people running schemes, trading them between friends or solo to establish a fake price history to pump their own products
>criminals using the variable values of the medium and the fact that they're not a currency to mask payments for illegal activity
>institutions speculating with huge swathes of money to burn
You can only really target the first two. I would probably be trying to make something that is quite distinct, not ugly and dedicate an effort to market it on Twitter and Reddit and other places, probably organize some kind of sales mechanism to create a sense of scarcity and pressure. Just listing it is not going to get you to 1.8m in sales like Stonetoss anymore, I think.