Nope they're pretty identical.
if you take a closer look at the elves in game you will find that their face and arms look normal, while their abdomen and leg got that texture that makes them appear like they have affinity with forest and nature.
You are 100% incorrect
Just look at the upper body texture for Sabille's art vs Sabille's model. The art has normal skin, the game model has weird messed up scar tissue for skin. Chest, shoulders, biceps, forearms, the works.