The colors you used are gorgeous. The holes at the ends are quite large though, you might want to try to adjust your modules a little bit to get them to close neatly together.
thanks! and yeah, I noticed the holes, I usually glue some crucial points of the model so things like there won't happen, but as I assembled this one only-god-knows-where (probaly the subway or smth like this) I was too lazy to put it apart and assemble again, lol