"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.