Folka Albark from Super Robot Wars/Taisen Compact 3, a game by Banpresto.
The pilot of Ialdabaoth and it's Shinka/Apotheosized/Deified/Evolved/Whatever the fuck you wanna call it form. He's basically "Hey guys, what if Hokuto no Ken?" and then one of the coolest mecha protags was born.
Description
keywords:
forukashura, red hair, short hair, green eyes, capelet, high collar, bracer, sleeveless shirt, sleeveless, turtleneck, belt, pants, chaps, knee boots
If the boots turn out to be brown, feel free to add "white knee boots" to the prompt. It's probably not needed, but add muscular on positive if you don't want him to look too slender.