Ugh... the music...
Really, REALLY grating. I hated the music and the yellow shades, but it was well animated and put together, so I'll give you a "4".
The (Russian) text at the end said "let me dream about you, Nasnya", BTW.
Why is this called Solaris? That's the name of Tarkovsky's 1972 sci-fi masterpiece, as well as the recent American remake of that movie...