I like the coloring style and the handwritten font (I *really* like that handwritteny font : D). The main, all-caps dialogue font is a little hard to read--I'd suggest finding something that isn't slightly italicized, doesn't have serifs, and that doesn't feel as sort of widely (mostly vertically, I guess) spaced. Or just go all in with the handwritten font instead, it is really cool.
The story is a little hard to follow between what I guess are separate pages--the presentation, in terms of things like color, shading, framing, and fonts and word balloons, seems to change between each page, to the point where it can be tough to tell whether or not the action in a page is taking place in the same scene as what happened on the previous page.
Being a little more explicit in showing the movement of characters from place to place would help too--as it is, they seem to sort of teleport from spot to spot, with no hint in their body language that they're starting to move, or completing a move, so that can be a little confusing.
I was also thrown by a couple dialogue transitions. The cat's "SHUTUP. Please just shutup..." runs abruptly into the dog's "Tea my leige [sp]," and it's a little tricky to tell that this is still the same conversation; at first I thought maybe we had time-jumped from or into a flashback or something.
And the cat's "Please will you still--" is a little confusing; it doesn't seem directly related to their earlier conversation; the dog hadn't promised to do anything that would be referred to by "still."
Oh and in the "I want to leave," "Please," "Please get me outta here" part, it's tough to tell from just the close-up of the muzzle in the first panel who is speaking, and in the second panel, it looks like the dog is speaking since they're the only one shown, and there is no tail on the dialogue, but I guess the "Please" is actually from the cat--took me a little while to figure out that sequence.
And there were a few other panels where it was a little hard for me to tell which character I was looking at; in the "My leige [sp]... Are yo--" panel, the dog character's head is drawn very similarly to how the cat character is drawn.
Also, don't forget to spell check! : D "Leige" should be "liege," for instance.
But anyway, like Imaginalex said, I see no reason *not* to put this out as a webcomic--you'll probably be able to get a lot more feedback that way, and that will help inspire you to continue to improve and hone your craft, which is one of the best things about webcomics. You only get better by actually doing the work! ^_^