Create a highly detailed, hyper-realistic painting of a full-body red mech standing on a Dragon Treasure, with a man walking in the background. The mech should be designed with correct proportions and have a Spartan aesthetic. Incorporate a curved red arrow and a flat, Raku-inspired painting effect. The style should be reminiscent of Cam Sykes and Kentaro Miura. The image should be in 8K high resolution, with sharp focus and micro-details. The overall mood should be dramatic and surreal. Include front and back views of the mech. The art piece should be of high quality, trending on Artstation, and suitable for a beginner artist.