There will be some minor blurring. Take a look yourself. There are no other options...
Added 2 minutes later
Simply changing the color is not an option - the texture needs to be redrawn.
Explain it to me like I'm an idiot. Why change it? You won't be able to make a perfect copy anyway, and you might introduce more errors. After all, the model already has the necessary protrusions for its texture.
Or maybe it's simpler to do it this way?! Add a bow effect... a combined effect!

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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1