Pokémon Model Ripping Project

[Random Talking Bush]

I'm still new to this model stuff and I'm having trouble lining up the textures in Unreal engine for a lot of the Pokemon, does anyone have a guide I could follow to try fix some of these issues?
Easiest example I can think of is Bulbasaur, when applying the textures to the bulb (I've tried both regular and mirrored) they don't line up with the model, while the textures for the main part of its body do.

More often than not you'll need to edit the textures and mirror them for the other half, but this is not always the case. Have a look at the "nor" textures for a reference point, if they're symmetrical / have a different aspect ratio than the "col" textures, then they'll need to be modified. Similarly, eye textures need to have both the left and right sides mirrored (but only halfway each).

Using Eevee as an example, you're looking to have results like these: