I will never get over how good Cleo look in anything but Rui Komatsuzaki's art style. Like, I just look at her in FGO and it's just so meh, but then I look at her fanart and I am blown away at how beautiful she looks.
I personally love his Danganronpa style art though. Maybe its because his eyes are way more expressive and it fits with the whole of the FGO universe to DR’s
Dante on the other does look a bit too messy though, compared to cleopatra.