Great work
I think that the strings should remain; however, when used like that (just flat chords) you might like to make it more ambient and pad-like by tampering a bit with the attack and release envelopes of the patch. Otherwise you could make it more orchestral by ie. having the cello play a basso continuo and having a "walking" set of strings in some of the parts (parts like first violins, etc. not parts of the song
).
Also, the piano has a rather hard key attack... perhaps it should be softened a bit.
Others than that, a tad repetive perhaps and no ending (again...
) but other than that, great work, as said
-> Oh, come on...