Drawing is pretty good. Nice sense of action.
Lots of bad tangents. The art style is different from each other in the first four panels.
Panel 1 - It was hard to tell this was a hat. The crown looks like a rock. The razor edges aren't convincing. What you are trying to use as a metallic just looks ilke a design decoration.
The hat coming out the frame touches panel three border (bad tangent) and makes my eye go to panel 3 next.
Joker's left arm looks broken. It looks like there is a cloud of smoke behind him.
An establishing shot is needed before this panel.
Panel 2 - I can't tell what Batman is climbing. It took three looks before I noticed the hat slicing his arm, which he doesn't even flinch at here. Yet in the next panel it makes him fall. Batman doesn't have a skin tight cape or a short cape, so we should see much more of it here.
Panel 4 - Looks like Batman lands on the sidewalk.
Panel 5 - Now Batman seems to be in the middle of the street.