Ok after some tests, "aesthetic" is not needed, just use numbers, and it works only for anime, even illustrations or 3d-ish do not seems to work. Here the tests: number scores
Also the model was updated somewhere after june 30th, and I'm not saying it because "i feel the images are better now", but because ALL seeds before that date are -very- different, not the same usual difference that seeds already have, but a complete change between all variations from before X all variations now.