Not bad, not bad at all. It's clean, it has little touches and effects that really display the setting quite nicely, and it's the goddamned Batman. I can see you drew a LOT of Metal Gear Solid V influence (Big Boss and Ocelot's selfie) but did not leave that as any form of credit where it is due. Apart from that, your contrast should be pushed further so that the lights stand a bit farther out better than the dark sections of the work, namely Batman's shiny insignia and gauntlets. The spotlight sorta seems out of place as to where its stance is versus the bat-signal's appearance, and Joker's eyes don't seem finished, his bright, blue eyes really go a long way in forms of standing out. Apart from my nit-picking and your missing credit, I like this piece as a refined edit with some personal touches to really drive it home. Solid work, keep it up.