the purple/blue stuff are rain clouds, gathering just before sunset.
i'm still working on adding a bit more definition to the sky and all.
ok, can't work on this anymore since i reached the 100kb limit,
but it's really too bad that you can't zoom in a bit on the final product.
i hope the clouds look more like clouds....

hey, great site marcello =P
i'm not really a painter though, and plus my pixel art sux, but
it was really fun messing with this (for the whole 10 min or so)
i'll work on some stuff later, cya.