A dark-skinned man in white shirts and a black sleeveless shirt flips his skateboard on a cement surface surrounded by tall buildings and palm trees.
a man does a skateboarding trick on a cement surface
Someone who flips their skateboard is doing a trick.
If a man flips his skateboard, he is doing a skateboarding trick.
A dark-skinned man is a man and of him flipping his skateboard means doing a skateboarding on a cement surface as part of the total description.