Pokémon TCG

[Virtuaboy123]

And Virtuaboy, the shines on gengar's eyes and the twinkle were both attempted, but because the highlights I had to work with was red and white, it really didn't come out as a shine and stood out way more than intended, so I dropped it to keep it a bit more simplified. Which is the name of the game here in my opinion. Also I don't quite understand what you are trying to show with that example..

I attempted it and got it to come out pretty well. Instead of not being confident with how it came out I say post it, that way people will be able to critique it.

The Drowzee example is showing that it's possible to stay close to the original despite color restrictions and even keep the background similar.

the edit I made(look if you want)

Spoiler

There's plenty more you can change, I'm just again showing my edit for you to understand. Due to them being so small it's hard to just show one edited section effectively.