The picture is a bit too dark to really make out the details and the quality isn't great either.
The orange looks really good with this scheme, but I can't make it if you did gem effects or not.
At any rate, you should take your base color green and the smallest detail brush you can find to clean up those highlights a bit. The edge highlights are supposed to be really thin, but if you go over them with the original green, maybe mixed with glaze medium if you have it, you can create sharp highlights with a better transition.
At any rate, this is WIP, you're here to improve and we're glad to help anyone who is really trying to improve so come back any time with anything you're unsure about.