I don't know. Its head leaf looks sort of like wavy hair. Which might be cool for Mona Lisa, but ... for me it doesn't work that well on Grovyle. If it uses the leaf to cut things, it should not bend and be wavy like that.I don't think this is cute, but it definitely doesn't belong in the Worst Sprites thread.
My first impression of Grovyle's RSE back sprite was that it reminded me of the Mona Lisa.
I prefer 4th Generation's backsprite, because the leaf looks sharp and its facial features are more like a lizard/better accentuated:
But, no other Generation beats its RSE frontsprite:
It's a very majestic pose, which works really well in provoking feelings of it being fast and jumping from tree to tree like that (because you're looking at it from below).
I kind of like Grovyle's design in general, and Treecko's as well. It's unfortunate that Sceptile's design doesn't inspire the same feelings in me. I've never understood its tail.
WTF?