"Not very successful (...) Since it's my passion, I keep trying"
The technology you've built is very impressive, but I suspect the way it's presented won't appeal to your target audience. It's very programmer-art-y.
It might be worthwhile hiring a designer and having them go over everything for you, both making sure it looks like a professional tool aimed at an audience that values sophisticated visuals, and also that the examples you have look premium.
I'm not in a 'hiring' position at the moment, but I appreciate your comment. I've struggled with artwork from the beginning. First I did my own (badly), then I hired off fiverr, then I used publicdomainpictures.net, then I used AI, now I use publicdomainpictures created with AI.
The technology you've built is very impressive, but I suspect the way it's presented won't appeal to your target audience. It's very programmer-art-y.
It might be worthwhile hiring a designer and having them go over everything for you, both making sure it looks like a professional tool aimed at an audience that values sophisticated visuals, and also that the examples you have look premium.