Mari-chan's line of evolution is complete now, with the release of Ariana, her final stage.

Prompt is the same for both Illustrious and Pony versions, I used the same dataset to train them both:

ariana (monster super league), ariana_msl, blue hair, flower, navel, hair ornament, hair flower, bracelet, breasts, medium breasts, cleavage, ahoge, huge ahoge, swimsuit, bikini, red bikini, twintails, long hair, very long hair, innertube, yellow innertube, decorated innertube, blue eyes, star-shaped pupils, symbol-shaped pupils, star (symbol), yellow pupils