space marine armor 3d model

Modify the existing model: give the armor a more colorful Warhammer 40K-inspired grimdark military scheme, with rich blue, red, gold, white and metallic details, while keeping realistic weathering and battle damage. Replace the current Halo-like helmet with a classic Warhammer 40K Space Marine-style helmet: bulky rounded power-armored shape, pronounced brow, narrow horizontal eye lenses, strong jaw/muzzle section, and iconic gothic military proportions. Keep the pose, weapon, detailed armor, circular base, and 3D-printable geometry.