I think the edit is pretty solid, it cuts well with the music, matches the flow of the subject matter, and holds the viewer's attention. I think it would be cool if the piano shot appeared over a piano riff in the music, but that's pretty minor.
There are a couple overall thing's I'd adjust. I'd make the color a little warmer to seem more comfortable and inviting. If I'm going to work at a retirement home, I want it to have a warm, cozy, happy look and feel.
The other thing is the overall picture composition. I think you can afford to tilt up on almost all your shots to give more headroom (I'm assuming you shot 16x9). The biggest draw to me for a retirement home would be the people I'd be working with, and the 2:35 crop puts the focus less on people's faces and more on the work that is happening. I'm not going to apply to a retirement home to just manicure nails or play piano or check blood pressure - I can probably get a higher paying job doing those things at other places. The appeal lies in the interaction with the lady getting her nails done, or singing with the group of people, or talking with the resident while her blood pressure is checked. You should focus on the fact that these people are happy and fun. Tilting up to give more headroom on the "human" shots could bring more life and emotion into the video.