Eugh. You could've done better.
The character designs I think were the strongest part of this 'toon, I liked how Matilda & Hiroshi looked; they were pretty solid & managed to be considerably memorable. Everything else, though, uh...meh.
The writing for the characters are very obnoxious, it feels like a bunch of middle school teens tried to get together & make jokes that didn't involve fecal matter for once, and it didn't go over very well. The point of writing characters, especially protagonists, is that they need to be likeable/able to be enjoyed, no matter their role - if the idea is for them to be hatable, make it so that you love to hate them. Save for Hiroshi (and that's a bit of a far stretch) these characters have zero redeeming qualities. I don't want them to see them achieve their goal of killing the dragon, I want them to burn in a sulfur lake somewhere in Texas. I found myself cheering for Hiroshi as the toon progressed, his intentions & motivations were the most reasonable out of everyone else's.
The voice acting is more acceptable, I guess, but there could definitely be more room for improvement. Not only is it low quality, it's hard to understand; without captions, I'm turning up my volume over here to try and hear everyone better. Some of these voices are awful to hear, too, Gabriel's & the dragon's voices wants me want to dip my head into a vat of melted butter.
This cartoon has potential to be good & I can recognize that, however I can't truly bring myself to genuinely like this no matter how much I try. Please improve on your writing skills. And get a better mic.