composite image of portrait of attentive trainer blowing his whistle

20s 30s 40s 50s 60s active activity adult aerobics angle at athlete athletic attentive attentively attractive balance beautiful blowing body camera care caucasian clapping class club concentrated concentrating confidence dancing elderly equipment exercise exercising female finger fit fitness flexibility flexible focused front gesturing group gym hand handsome happy health healthy instructor job leisure lifestyle looking low male man mature medium mid mixedrace of out people person physical pilates pointing portrait presenting pretty room senior serious shape showing slender slim smart smiling sport sports sportsman sportswear sporty standing step stepping strength stretch stretching studio tank toned top trainer training view wellness whistle woman working workout yoga young