Final Cut

So we're learning Final Cut now. We had to take a number of random videos with random music that weren't made to be put together...and make a 30 second video out of the one's we chose.
It's amazing how much you can fit into 30 seconds really. I was constantly changing my ideas, which was very annoying because it meant that the video took a lot longer to make than if I'd just stuck with one idea all along. But me, I'm a perfectionist, so that's how I work. Some of the main ideas I came up with, and actually started as well, were using sharks and a shark attack, explosions, crashes, timers and the like. I'm wondering now if I was in a bad mood and was portraying that through my ideas..?
Eventually I settled with using a beating heart, a shark and a woman's face showing fear. The idea of it was basically a heart beating quickly as a shark comes closer, followed by the fear, and then the shark going away. I also added a short video of bubbles in between some different 'scenes' in order to help the transition of the different videos. It also was a way to change the type of music and the bubbles themselves also tied in with the whole theme.
I also added a short video of rain + lightning which actually didn't have any relevance and was mainly put there to just extend the video. Altogether it ended up being 28 seconds.

I was quite pleased with the final video especially seeing as it was the first time that I had used the program. However, yesterday I went back to it and changed some things, plus added and deleted. Now it's 30 seconds!! and I'm keeping that as the final.