This is nicely framed with the railing leading the eye to the nice light on the building in the distance. The bg tree line intersects the building roofs at what feel like natural points.
I'd say the photo is underexposed and this is especially evident in the dark building on the bottom left.
If you wanted to get into details, then I'd clone out the 'scooter' and 'burger' writing on the signs which don't go with the mood of the image.
Panasonic G3: 9-18mm, 14mm, 20mm, 45mm