It seems what you want is "collaboration" help. Unfortunately I myself can't help much on there. Even if I could, I'm not sure how much I could trust my own coloring techniques. If anyone on here would like to help, that would be awesome. As far as coloring and having someone directly work with you on your comic, it would be best to ask the forum for Collaboration.
Unfortunately most people just aren't going to do things for free. If you can't provide some level of compensation, most people just are willing. However I'm not one to just leave a person hanging so let me try to provide some level of support.
Reading through a bit of your comic, the fact that you've already made 30 Subs in 36 episodes is already a testament to your work. While I won't lie, your art does need improvement, your comic has certainly hit a level for the audience that they enjoy. Maybe its the story or characters? If had to offer some improvements they would be this:
1.) Work on proportions. This is something I myself have to work on as well but it might be the most important thing to do. It's difficult drawing some times and it takes practice. Here's something I did a long time ago.
And it's...not that good. In fact it's kind of bad, it looks like a cat got sick on my paper. This is what happens when you draw entirely in MS Paint! This image was created about 5 years ago in 2011.
And here's one of my most recent pages for my own series. Now to say its flawless is a load of junk. But look at what 5 years of what hard work and practice has done for me? It's amazing and it makes me feel so proud that my art which was absolute garage in the past now has a semblance of slight professionalism. And it's like...what will it be like in the next few years? How much can I improve now?
I can't make you into an excellent artist in a few days or weeks even if I was an excellent artist myself. It takes time and diligence but if you keep up, you will have an excellent looking series.
But perhaps there is some other things I can help with. I believe you sketch your comic first. That's fine of course. But because sketches are often unclean it would help for you to then use a program like Photoshop or something to hep clean them up. It would also be great if you ink your lines, blacken them out so they're cleaner. If anything you should try this out with a lot of things, drawings, text, panels. Do it with shading as well.
Sketching out your comic is fine to start out with but once you've cleaned it up and digitally enhance it, many improvements will be made. It makes it look cleaner and easier on the eyes.
Hope that helps.
I'll see about checking a few of your sentences and see what needs improvement if you wish. I can't exactly be just a grammar checker though. I'll see what I can for now but something that always help me is to write out the dialogue in something like "Microsoft Word" first and see how it looks there and anything that needs to be edited and fixed and then copy that to my comic itself. It saves me a lot of trouble with potential errors.
Yep you must have pressed Ctrl, Shift, Alt before clicking the PS icon. But it seems you figured it out. Unfortunately if that didn't work I'm not sure. Can you possibly send me a screen shot of what this problem with the 300 px looks like? If you don't know there's usually a button on your keyboard called "PrtSc" Print Screen. Pressing that sometimes with Cntrl Alt will copy an image of your PC screen and you can paste that.
If I visually saw what was going on, it could help me understand the problem better.