That\s not that bad, I've seen worse!
The pitch-matching is perfect! In fact, I'd love to know how you did it! If only I could match samples like that!
However, I have to disagree about the samples themselves being good. First they're too short, and due to the way they've been cut, you can hear about 2 or 3 ticks per second. My mod has the exact same issue, however the samples are quite long...
Secondly, they have a very high compression rate (aka. Low kbp/s). I can hear the lack of any sound above 6k - 6.2k, and I know this isn't a LPF (Low Pass Filter) since it's a too harsh (usually when humans apply a LPF they keep it smooth, computers don't care ^.^), and it lacks bass. Did you, by any chance, download the samples off a youtube video with no HD option? Cameras usually have small electret microphones. These can deliver excellent results (They are even being used in Professional Measurement microphones), however, they have a small circuit attached to them, which needs 48 Volts to function. In cheap cameras though, all they get is 12 or 24. So the quality is dramatically lowered. The mic starts distorting, and doesn't pick up bass or highs. Not only that, but Youtube compresses audio a lot on non-HD videos to save bandwidth, totally ruining the quality.