Disclaimer: take this as a personal opinion and advice. Nothing I'm going to say applies to everyone.
Obviously, this is only the beginning for you, at least for this particular comic. The first episode is obviously just a one off, so I'll focus on the second one.
First of all, you do have at least an idea for lineart and composition, so I won't comment on that. You do you. Practice and time will bring about improvement, and you seem to have promise in this area.
But one thing I can see that could help out your comic considerably is color. Your comic is very dark, color-wise. It's a bit hard to see what's going on, although not completely. If you can, practice using brighter colors, and when you shade, try not using black. Shadows in real life are not really black, and even less so when you do color in art. Try using dark blues or oranges, or even reds! It makes the colors more blended and pop. And if you don't know what to do with shadowing, just lighten it up as much as possible.
Another issue I see with color is the plaid on your character's shirt. I'm guessing it is based on a premade texture or something similar, and I would advise not using anything premade, because it can clash with your line art and colors. Better to make as much as you can by hand or scratch, or make the texture yourself and use that.
Everything else, design, story, humor, I believe you just need time and polish. All which comes from time and practice. Good luck on that end.