He he he...
Oh my god, I remembered that from the pixeljoint comunity:D
Although i never submited anything, not to mention take my time to create an user, I do lurk alot to watch all the awesome pixelart.
This weeks chalenge provided a verry dificult pallete, so i won't really go into critizising you're use of collours. However. Everything looks too plain. You need to add some more interesting textures so the buildings wont just seem as blocks placed next to each other:S
The black outlines is generally a bad idea too. Make them some other colours so they wont stand out as much:)
I'd have liked to make this review a little more indept, but I gotta go eat now. Good luck in the competition:)