Thanks a lot, m10538. It's funny you mentioned the TV... I've watched some of them on my large TV also (USB memory stick) and they look awesome! I specially like the Kayama works that I used in "Flight". Google is amazing in getting these graphics. I like the fantasy-type pictures...
Regarding the length, when I'm working on a song I aim to make it at least 1.5 mins, but it depends on the song; some melody lines are longer than others, and it also depends on how I structure the song itself. This one has a fairly short, simple melody line; I repeat it 3 times with a diversion in the middle (which is also short), and adding more would be too much. I like simple. But I agree that often they are short as a result. I'm sure one can stretch the song with proper arrangements, but that's outside my league...
Also, this is a hobby for me, and I like creating these songs really for my own pleasure. I don't have commercial ambitions, but it gives me enormous satisfaction to see the songs come to life. I listen to them all the time, and that is my purpose. So I try to present them the best I am able to produce them, so that the song can be appreciated clearly.
The rhythm is weird, and it took me a while to get in its "groove"... I hope it works. I'm trying to explore some of the strange rhythms that the keyboard offers... I just can't wait for next Monday to be over!