Shiny Version Pokemon Chart What Are The Odds/chances That I Get A Shiny Pokemon Starter Pearl Version?I Really Want A Shiny Turtwig!?

What are the odds/chances that I get a shiny pokemon starter Pearl Version?I really want a shiny Turtwig!? - shiny version pokemon chart

What are the chances / risks, I have a brilliant starter Pokemon Pearl version? I want a Turtwig Blue Baby! Any advice how I can get? Thank you!