Good evening, I read your worries for your sprite and I have decided to make it myself for the needs of the game because I know that a few weeks ago, another player had found a modest nature .
I found a sprite on the internet look similar the one to use on the game and I draw to take it back to make it shiny.
I have an example of final rendering with and without shiny.
The examples :
No Shiny :
Shiny :
If the rendering is 'not too bad', I can send the shiny sprite that I made by private message to [mention]Thor[/mention].
Good bye guys !
PS : Here is the original image that I find and modify (https://www.smogon.com/forums/attachments/chespin-line-png.5203/)
I can make the back of the pokemon and these evolutions also.