Chill'n

oh this is epic. Great photo

lighting: warm rays of the late afternoon, nothing crazy, but done correctly

focus: proper use of depth of field for subject/background discrimination. Just the right amount of soft focus to make the background important, appreciated, but out of the way, and eyes focused on the subject

Subject matter: nothing too stunning, which makes the picture better. I always say the "uber mench" of photography can make any subject matter interesting. You managed to make what is normally boring subject matter interesting, which leads to:

Composition: You've made what would otherwise be beach trash extremely interesting. You MADE the subject matter interesting by adding an adjective to the noun. The placement of the bottles to the right allows the perspective viewer to absorb the background and predisposition of the scene, the serenity of a beach a half hour before sunset. The arrangement of the bottles brings a strong connotation of love, making two inanimate objects apear human as if they were cuddling.