This is a fantastic combination of your abstract art and a stunning photo by ! In my opinion, you should do more like these. There's even a volume bar for the music - I don't know why you don't have that in all of your Flash deviations with music.
It's really nice to look at! The cat, illuminated from above, with the black background, is already great, but the cloud of colour and light is beautiful! I really like the colours and the way the particles move. Lens blur and glowing gradient add magic to the scene. The way it reflects in the cat's eye might not be 100% physically correct, but it fools me and makes a very cool effect.
There are some minor things bothering me a bit. The music sounds good, but it doesn't loop perfectly. At least the way it ends and begins anew, it's not annoying. The animation also doesn't loop seamlessly, but I didn't notice it at first. However, the animation is lower in quality than the rest of the image. The gradient glow around it, especially on the outer borders, seems a bit pixelated, as if you used JPGs for the frames.