New York Alleyway first Cycles render

This is been my first attempt at a full scene on blender as well as my first time using cycles, everything i modelled myself and textured myself except for the car, been a good learning curve the most difficult being the lighting and the render times, this image was rendered at 1024 cycles at 1920 x1920 res (200%). Still a few fireflies in this image but preferred it to the denoised image. Any feedback or advice please give me it! Still want to add a few things to the scene but any ideas?