I read your comic yesterday and here are my thoughts on it:
-I like the concepts and I'm into the world you have going on there. The character design and battles are campy and fun in that shonen way.
-I had a bit of trouble following the story line though. I got lost a few times and I struggled recognising characters. I think there are some problems with the flow.
-I would suggest adding more transition panels without dialogue to bridge actions/events better. Also, I understand the B&W manga style you have going on, I suggest adding a wider range of shades for more contrast and playing around with darker shades, and even black to illustrate lighting and shadow more.
-Some more suggestions I have are to vary your lineweights within your lineart. I think this is more important with a B&W comic like yours. It will add more life to your art and comic. Additionally, you can also emphasise shadow with a little bit of shading in your lineart. Let me know if you'd like visual examples.
-I recommend solidifying your anatomy and gesture drawing fundamentals more. Your gestures are already good though, but there's always room for improvement. Don't be afraid of using real life references if you don't already, and practise life drawing more frequently.
Sorry if that was a lot of text to digest but I hope that was helpful!