#2 i like the idea of the sun in the background, however i feel like the sun is the main part of the logo. I would rather the building stand out more than the sun. Also the building in #2 doesn't look a lot like the building i posted in the link on the contest page.
#3 i like this a lot more, the building looks more like the one we are located in, i like the ocean waves underneath as well. Can i see a couple more variations of this one please? Maybe with more emphasis on the building (the light grey color makes it hard to see, maybe add some darker grey or black lines to it).
Thank you for your designs, i like where you are headed .