@Dust Rock
Basically what zippy said, having such saturated colours is a good way to make your character stick out like a sore thumb among all the other pastel-coloured ponies. The stark contrast of the black and bright green mane is also pretty overwhelming. Such saturated colors and strong contrasts should be used pretty sparingly.
Just lightening the coat colour to be more in line with the general pastel look of ponies and restricting the use of bright green in the mane to small highlights would go a long way, i think.
@Dust Rock
Some people have mentioned that to me, but like I just wanted him to be different from most ponies who always seem to blend in despite their good color pallets.
Blending in isn’t really a bad thing, nor is it the same as being indistinct. It just means they fit into the general look of the show.
Canon characters like the mane six all have distinct, unique and recognizable designs… and they all blend in with each other pretty well. You can tell them apart from each other instantly, but none of them really stand out more than the others. Not too much, at least :v
The trick is to stand out while also blending in, if that makes any sense whatsoever :v