Thank you very much.
I'm quite new to the whole concerto "concept" so I guess either a complete concerto or one movement would be okay. I would say either something beautiful yet exciting.
Once again thanks for your quick response.
Well, taking your repertoire in mind, and the fact that it's your first concerto I'd suggest you to start learning a Bach or Mozart concerto, just to get the gist of how a concerto feels (It shouldn't take too long) and only then take on a bigger one. (Bach's F minor and D minor are good as first concertos)
After that I'd suggest Shostakovich's F major concerto, or Ravel's G major, or Schumann's A minor. (If you do pick Schumann, start with the first movement, and only then decide if you want to continue.)
You can also take a look at various second movements - Grieg, Rach, Tchaikovsky, Beethoven, Chopin, and plenty of others.
Good luck!