I enjoyed that. I liked the very calm atmoshpere it had, with the two cute little ghosts around all of the blue and pink. It worked very well. The music was very ambient and the beat it had just made it perfect. The animation was simple, flowed pretty good, and not overly detailed, yet not overly basic.
I also like the fact that there's sort of an interesting, perhaps bittersweet story going on this, as it matches the theme, but I was slightly confused towards the end... did they both die? Was it a dream he was having while in a coma? But either way it worked I think.
It's one of those videos that I just wish was a bit longer, and I know it's just supposed to be a short, but if it went more in-depth over a longer period of time It would have been outstanding. All-in-all though I thought it was a neat, somewhat sad yet kind of cute story. Nice work.