Ace looks pretty much the same as most others of his species, the main difference being that the tips of his petal things are purple instead of white, and parts of his scythe things are purple as well.
He's also significantly taller than most Lurantises as well, being around 4'11 instead of 2'11.
Will update this later, but the basics you need to know will be here for now:
-A big sinner, is very concerning
-Tries hard to act cool and makes it painfully obvious, but people still end up liking him anyway somehow??
-Rushes stuff a lot
-He was the first character that was added to the Aquamizz Wikia.