Since you use c4d in render settings, output set the resolution. Lets use 1024x768. Then go to effects and apply global illumination, add a sky to your scene and voila.
On another note
if you have r11.5 in materials go File\Load Material Presets\Cinema4D\HRDI\Hdri 022 or something. Apply that material to the sky and reflection to your blades and they will be very realistic