There's still a lot of Artistic Lines. It makes the picture look a bit unfinished, along with the dirty pixels due to JPEG quality. Perhaps if you went over everything on a different layer with one solid outline it could look cleaner.

And maybe save it as PNG rather than JPEG because JPEG kills quality.

Aside from that, the colors are alright, but I'm not really getting a sense of where the light sourcing is from. From what it looks like right now, NLK and PK are standing on the edge of some cliff (which has two things on the side) while they egress from two caves.

I aim for clarity, not perfection. Therefore, I don't care if the artistic lines make it look unfinished. As long as it does its job, I'm okay with it.

Also, I have no control over what the program saves the image format as. I've done it on an application that does not care about things like that.

And don't think too hard on the light. I wasn't intending on mimicking how it worked anyway. Besides, you don't think hard about things in real life. Why should you in the land of fiction. (Also, I would like to point out that this is actually a dream sequence one of the in-universe characters were having. Dreams don't pay attention to details such as the true location of something unless it's relevant tk the scene at hand.)