Model: The pumkins are detailed polygonal geometry averaging about 20,000 polygons each. Looks great up close or at a distance.
Materials: All materials and textures are included. They are standard max materials with a few mapped elements and some procedural ones.
Lighting: One Main light floods the scene with contrasty falloff and one blue light backlight's the scene. Each pumpkin has 1 or 2 lights inside cranked up to overexpose the texture.
Render: These images were rendered in Mental Ray but the scene is compatible for rendering with any renderer.