Observation is key. I don't need a guide to tell me that R/B/Y sprites use a four color palette, just like I don't need a guide to tell me that all D/P sprites are rendered in an anime style. It's a fact, and whether or not you choose to accept it has no relevance regarding my post.As much as you can tell us about what you think an idea DP sprite looks like, I'm pretty sure you have not read some sort of Nintendo guide that tells how to perfectly create that style of sprite.
I stress the importance of style consistency for this reason: creating Pokémon and going to the lengths of making them usable on Shoddy means that they are intended to stick around. I believe that the closer a CAP sprite is to the current Pokémon generation's style, the more lasting appeal it will have as an added Pokémon as opposed to a sprite that voters thought looked "neat" at the time of voting.
Edit @ Wyverii:
I apologize for the lengthiness of the previous post, I understand it must have been hard to get all my points out of it. I specifically mentioned cases similar to Beldum's when I said that black and outline colors are used for texturing. In Beldum's case, he has some entirely separate surfaces indicated by the shadow color touching the base color, not multiple texture colors on the same surface. Venusaur has more colors than the average D/P sprite on his body partly because it is such a broad, unbroken expanse that only two colors could not have adequately expressed shadow and highlight. CAP 5 is not comparable to Venusaur in that regard.
My issue is mainly with your sprite's head, not the rest of the body (which is indeed excellent).