I know your questions have been answered, but I can relate to your situation (somewhat).
So... Here's my problem, I have never taken any music lessons in my life, and I am now given an opportunity to audition to get into a university, my problem is I don't know what pieces I should prepare. Any suggestions?
I, personally, taught myself piano my whole life until I was just under 19 years old. That's when I began taking classical piano lessons (I am 20 years old now, I've had 1.5 years of study under my belt). After one full year I managed to successfully pass my university's audition with these three simple pieces: Chopin's Prelude No. 7, Bach's Invention No. 1, and Mozart's K545 second movement.
Granted, a couple weeks later I found out I could play Bach's Sinfonia No. 15, which is pretty much the hardest of the sinfonias, but I still made it into the music major program. However, due to the level of difficulty of the pieces, I did not make it into the composition/theory major which is what I was going for.
I will say that your pieces seem to be of a greater difficulty level than the ones I played so you should be fine if you can play them well. However, be prepared to step things up.. I just received the list of pieces my piano at said university wants me to have prepared by the end of summer and it's going to be quite a bit of work. This was also my first audition as well. Even though I taught myself quite a bit of musical theory and knew my way around the piano before I began lessons, I had no classical training at all, so if I can make it into a university, anybody can.

Just thought I'd throw my two cents in there since I was in a similar situation. Basically, if you pass the audition, you'll be good to go. Just be prepared to do a lot of work!