athlete
back
back exercise
bald
beauty and health
biceps
body building
body building exercises
body conscious
bodybuilder
bodybuilding
caucasian
concentration
dark
dark image
dramatic lighting
effort
equipment
exercising
flexing muscles
gym
health club
healthy lifestyle
human arm
human muscle
indoors
low key
male
man
mature
muscular build
rear view
sport
sports training
strength
tan
the human body
toughness
weight training