I've had a listen to all three. My favourite is the piano and bass fantasy.
My thoughts:
Good:
1 Melodically, they are all very interesting, very sophisticated constructions.
2 I note the variations in the sonic landscape.
3 I like the use of less common instruments and combinations thereof.
Areas for further consideration:
1 I'm guessing that these songs are assembled note by note (or maybe phrase by phrase) in Sibelius or a some other midi editor (maybe Fruity Loops). The general piano sound disturbs me in particular, because the notes seem all to have equal weight, i.e. full on, and are too precise, and I'm not hearing any variation or sensitivy in playing. This is specially the case in "Fantasy". Without a real piano player, it is difficult to do this . . . but it can be done.
2 The kit in "See sharp" was playing a dramatic part, but was mixed comparatively fairly well back. This, for me, is an aural inconsistency; a bit like a trombone being drowned out by a lute. In any case, for all the variations in the rhythm part, the overall sense is one of constancy, i.e. it is always there relentlessly. The same applies to "Dee"
3 While on the subject of "Dee", I like the harmonic development of the brassy-sounding parts. However, the repeating underlying motif overstays its welcome with a track length of nearly five minutes, and my perception was that musical development in the piece had stopped by about three minutes.
4 In general, my mind is hearnig too much cutting and pasting of phrases.
In summary, I note the increased breadth of the sonic landscape, but now I'm seeking out the dynamic variations (for example, like the drop out of most of the instruments at 5:30 in Fantasy . . . which could have come sooner). The kit drops out at 6:30, but this could have come more often throughout the piece. And perhaps think about tempo and feel changes.
I hope these comments are useful.