(using POVRay and The Gimp) and even hacked the source to
display more than one alien class and count your kills and "printf"ed
them at the end of a game.
The POV scene files for the graphics are avalaible and
the total amount of colours used is less than 256.
Where I should submit them ?
(a patch file to the source is now imposible … adding a
parallax background is harder than it seems so I ended
with a big spaghetti-like mess 
Un saludo
Paco