Hey there, first off- thank you for sharing your comic!
Now coming at the first few episodes from an illustrator's standpoint:
I want to congratulate you on taking the time to draw backgrounds. Seriously this is a pretty big deal. I see so many artists avoiding them as best they can, and you dive right in. I think it's paying off! I really appreciate what you're doing with the colours too, as far as setting a mood.
One thing that stands out to me is that often when the characters are seen performing an action- especially one where you can see the full body in frame- the poses feel a bit stiff. I think this limits how effective these scenes can be at conveying a sense of tension and urgency. I get the feeling that you're focusing on drawing correct proportions without considering how they're altered in perspective (ie. foreshortened limbs and such). From personal experience, I'd say practicing gesture drawing from figures in motion would really help breathe more life into your action scenes.
I have to admit I agree with @laiscnogueira about the close-ups. Maybe try experimenting with different angles or more exaggerated facial expressions and hand gestures to change things up?
On the whole though, I think your doing great. Keep it up!