Hi there.
If you have a proper footage (with any time-lapse ones) I can provide you the same professional quality either for the video montage (and enhancements with a soundtrack) and logo animation and style - the whole respecting the mood of the Youtube sample that you have posted to.
Answering your questions:
1) Please, take a look at my in-site portfolio or search for my channel on Youtube: AI productions
(I can't post my link in the proposal for the website's Terms & Conditions).
2) I could provide you a few second samples though it wouldn't represent my skills at all. I prefer be hired by you, providing you a video with your 100% satisfaction. No review limits.
3) 250 USD per video of around 2/4 minutes.
I'm an advertising designer with professional background in broadcasting TV as audio/video editor, author, post producer and commercial creative/maker.
Please, feel free to contact me for further details and information.
Best regards.
A. I.