Young man with muscular body posing shirtless on knees against orange background with green and red lighting for fitness, health and fashion concept in studio.

man shirtless muscular fitness body pose kneeling lighting shadow studio athletic model health strength fashion young male skin torso exercise workout muscle power beauty posture gym training wellness lifestyle energy sport performance physical active bodybuilder shape healthy male model fitness model strength training toned fit athlete posing colorful background orange green red blissful