ya, sorry to echo others same responses but I was just starting to take in the lovely shot and BOOM--another iMovie transition.
Ok--I can do better that that response:
Your shots are really nice, but they need to be longer. Personally, I'd stay away from fancy transitions as they take away from the shot. A simple cross-fade is ok here and there but every edit you make (and it's soundtrack) should have a rhythm to it. Not necessarily hitting the beats to the music, but sometimes that is nice too--I mean a rhythm to the shots and the story telling. We are telling stories--have fun with that concept.
Keep at it and you'll get better at it! Cheers, brother.