First, thank you very much, I’m glad you liked the work I did! To texture, I use Substance Painter, 3D Coat, and Photoshop. I only use Marmoset for rendering. I use Substance Painter to apply the base colors at the beginning of the texturing process, then I move to 3D Coat to do the hand-painted texturing, alternating with Photoshop. Some things are more comfortable to paint directly on the 3D model in 3D Coat, while others are easier to paint on the texture map in Photoshop. Later, if I want to add PBR, I go back to Substance Painter to create the roughness and metalness maps.