The thing that immediately jumps out at me is how THICK your ink lines are. Your comic would benefit greatly from thinning them out and making more confident (less shaky) strokes.
Going to comment on this strip particularly because I feel that it has a TON of untapped potential.
The punchline, right now doesn't make a whole lot of sense. What if you did this:
Keep all the "xxxx person is fucking dead" frames.
Replace the last frame with the joker laughing like a madman looking at batman, and have batman say "I WISHHHH he was dead.)
That would be pretty good in my opinion.
You have an amazing start. Your art is pretty decent. Switch up some of the punchlines and this is something I would consider reading every friday. Keep it up dude. (sorry if any of that comes off harsh. I'm seriously trying to help.)