A guy and a girl on the beach next to the sea look at the blue skyA guy and a girl on the beach next to the sea look at the blue sky
The guy smiles in the photo studio under the lightingThe guy smiles in the photo studio under the lighting
A guy and a girl on the background of a sunset on the roofA guy and a girl on the background of a sunset on the roof
Юноша, молодой человек ( разг. ). Вообще употр. в знач. человек, мужчина ( прост. ).