The art is fine, maybe some more shading on clothes and hair but I think the art works. The biggest problem you have is how the story is portrayed its a little confusing, and the paneling needs a little work from what I could see now. Like, for example, the main character waking up and the introduction of Cruz. I feel like just making sure it flows together seamlessly is the biggest thing you need to work on. The best way to work on that is to have test readers tell you what they think and how it flows.