Critique AND advices for music and videos.

[Lionmonkey]

About the time, I got home access to internet, I got really interested in machinima. It looked for me like creating my own movies, with no need in practically any budget. I've successfully abandoned it after a few unfinished projects, but after some time, I've considered to restart the work.

I've got some stuff finished, lying here and there, but I've decided to get some critique and advice, so I improve what should be improved and leave alone what should be left alone in the next ones.

So here's work number 1:
http://www.youtube.com/watch?v=GartgtdRTLQ

and number 2:
http://www.youtube.com/watch?v=IVEPo8djeGo&feature=related


The music is made first, before the actual video shooting, keeping in mind what part of the story (which was thought up long ago) will the video show.
Then clips are shot in game cam and cut and sewed and combined with music in Windows Movie Maker (I still haven't learned how to keep the quality good and size little at the same time in Vegas).

P.S.:Please tell me if find that Youtube compression has bad influence on video and audio quality, I'm really worried about that right now.