Cute picture. Nice composition with the depth and the streetlight. I'm slightly torn on what looks like a person in the background because I like the isolation of the girl. I'd probably crop it out because I also like the repetition of the vertical to his right and with him and the visual mess to his left seem unnecessary. So I'd crop exactly to his right. But a very nice picture.
I'll defer to my betters, but I love the portrait. She's so cute, I'd want everything to emphasize her - which would also crop from the left. For me, just far enough left of the lampost, but before the vertical rise in the first rock. From the top, I'd come down just to the top of the darkened last window on what looks like the 3rd story. The one just above the top most umbrella point. This leaves you w/ 3 or 4 somewhat parallel lines all pointing down at cute subject. Its really good as is. Your view is most important & produced a terrific portrait.