Pavlinho
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Actually, it's unlikely to achieve a "hype" effect. The whole point is that the models in Heroes 5 are very low-poly. Their beauty and quality lie in the artistic talent of those who painted them, and they also have their own unique "style."
You can try to achieve a "hype" effect, but the model will end up looking like the ones in Heroes 7, not like the ones in Heroes 5.