This is very well-detailed. The orchestra starts out just like I'd expect it would with a piano concerto piece. Great intro to lead the piano in. Because it's only 3-4 minutes, you seem to highlight a typical piano concerto and just condensed it here: the intro, piano with orchestra, virtuosic piano playing, and a little return with orchestral instruments, but it lacked a finale. I really don't care that it did either. I enjoyed it without one.
You know, you did what I always thought was awkward with what some of these composers did with their piano concertos-- you left out the orchestra for far too long while the piano just does its thing. The orchestra just sits there and waits to find a place to say something because the piano just says too much. For example, and although I loved his concertos, Chopin didn't write with a good balance in the many instruments he had in the orchestra and to write it with great detail as with his piano part. Or it at least seemed that the orchestra to him was more of an afterthought and a support beam for his piano, but I'm really digressing now. I prefer that if the piano was to be played with the orchestra in a concerto setting that the orchestra would be treated as equal. But being that the Romantic period was known for this style of play, you did well to match that.
Also, since you created an atmosphere as if we're listening to a live show, I expected the piano to be more distant, and compared with the orchestra, it doesn't seem to blend well with the space. The production and mix is great no doubt, but my ears deceive me when I initially thought it to be on stage rather than sounding like being in a studio. I'm really being too picky I know. I couldn't have done a better job in capturing the style of the late romantics in such a context as this. The composition is great and the piano was done meticulously, and so working on this for less than 2 weeks really isn't fair for me to judge. As a side note, the rolling timpani underlying the piano part at 2:06 was a great choice, and I really like where the composition leads us beyond that point. You're really good.