I like this style, your animation is nice and snappy with only a few frames, it works. The voices are decent it definitely fits with the art style and expressions. The audio quality is not the greatest, it was hard to hear what he said at the last part there. I'm not sure if it's because of the mic used or because the way it's exported. I know in flash you can go file>publish settings>flash then set audio stream and event to higher quality and bit rate, see if that helps.