#1 I like the font, however the company name is "Beridian". The skyline is a nice touch, but could it be more subtle, perhaps less buildings or maybe an abstract symbol that could make you think of a tall skyscraper? The colors are nice.
#2 Same thing applies to
#1, however I like the green contrast as well.
#3 I am open to a solid background however most of the company letterhead, business cards, etc will begin with a white background.