5 sci fi illustrations

I have had several sci fi drawings done now, and I have decided to place a small bulk order. The five illustrations have been outlined below. A more detailed overview of each illustration will be supplied along with a few concept and reference drawings. I have supplied an image to the standard and quality that is required.

1. Two space probes in foreground, one ice giant, one artic moon, one star.
2. Space station, one star, one planet, a few small fighter craft.
3. In space, zombie robot clinging onto an exploded and separated part of the space station.
4. Combat scene, detailed close up of alien tearing into solider face.
5. Future earth military base, military space craft taking off from base.