Awsome

This was something different from you then normal I love the cartoony feel here, Very pretty depiction of Harley QuinnThe artist does well in creating a cutesy look to the cartoony approach which plays nicely on Harley’s general theme a cute craziness, The addition of colors is flat in certain areas such as on the designs of her shirt and the coloring in of her glove, However the areas that highlight her style of endearing instability that being her eye makeup and dyed hair are done in a manner that executes the unruly look perfectly.

~~THINGS TO IMPROVE ON~~
If anything at all maybe some small changes with adding some sparkle on the gun and maybe some added backround detail or

~X~

So you were going with these simpler alternations this early huh! :D An authentic looking Harley work. Great detail. Not bad.

-cd-

An interesting use of flat color. I love what you did with the tattoos!

The only good thing to come out of this movie

Mmm, some of those proportions seem... A bit weird.
Still, it looks really cute, and it´s nice to see an artist you like trying something different from their usual style (not that i dont like that style).
In general, this picture has some things that i don´t like, but the general result is still of pretty high quality.
Conclusion: I can´t wait to see more drawings of yours in this kind of style!
PD: Really nice work with her face btw. Its so cuuuuuuuuute!!!