I think the biggest thing you can work on, is your formatting. Work on getting really clean scans of your artwork. Use the "curves" function or "brightness/contrast" function in Photoshop to get those backgrounds to white instead of the gray and your lines nice and dark and crisp.
It might be worth going over your panel lines (not the artwork, but the boxes) with a nice solid line tool in photoshop or whatever art editor you are using. Make those margins nice and clean and sharp.
I think posting the pages, only a few pages per episode will help the flow. Right now I'm scrolling forever and ever. Also, if you have 1-2 pages per episode it helps people give you feedback in specific pages/areas.
Another thing that holds you back is your lettering. I highly recommend drawing your panels, then doing your word bubbles and text in a layer over the top. It will give you more freedom and your words won't feel squished.
This is an EXCELLENT tutorial: http://chrisoatley.com/comic-lettering-comic-layout/
And this one too: http://www.blambot.com/articles_grammar.shtml
The art itself is quite good. I can see the potential, but I feel strongly your presentation, editing and formatting is really holding you back.