Concerto for Piano and Strings

This is a piano concerto I am composing now. I will succesively post remaining movements. The second movement is a slow siciliano, in my feeling it's a bit too short but when I think what I could add, I don't have any ideas :/ what do you think?

It' nice.

I think that the left hand in the piano should change at some point.

I thought this was a good foray into writing a concerto -- I will say that I found it to resemble Bach's Siciliano movement (BWV 1053, ii) a bit too much. I think that it can be beneficial to have models like this, though only as a starting place (for instance, as a basis for the form of your piece). With that said, I think that you manage the textures quite well and that you do a fair job organizing your material. I would not necessarily say that it is short, though,  I would avoid thinking of composition in this way. I feel that what's more effective is thinking about how well you explored the areas created by what material you have presented. For instance, asking yourself questions like, "Have I developed my motifs/melodies/textures in a way that is satisfactory?" or, "Am I pleased with how I crafted my music?" Questions like these can help you stay grounded and oriented when writing; either way, it is always safe to say that you have to start somewhere in order to get to where you want. Good job!