Science Fiction and Fantasy Illustrations

I'm looking for an illustrator who can do two personal illustrations for me: 1 sci-fi and 1 fantasy themed. 1. I'm looking for an environment illustration that has 3 space ships crash-landing towards a planet (planet has to be visible), done in a dark and gritty Sci-Fi theme. Colours are supposed to be colder and dark (where appropriate). 2. For the Fantasy Themed illustration, I'm looking for a knight on a white horse, staring up at the sky right before the sun sets to see that there are 2-3 stars. Colours are supposed to be warm. These two illustrations are supposed to go hand-in-hand with each other. The overall style are supposed to be similar, just that the subject matter, colour palette, atmosphere are different. (SEE ATTACHED FILES FOR ACCEPTABLE STYLES) Keep in mind that both illustrations have to be done in the same consistent style. Technical Requirements: Dimensions: 5800 x 3800 px's 72 dpi UNFLATTENED PSD format Time allotted: maximum 20 days after sketch approval. Payment Procedures: 15% upon first sketch approval, 15% upon second sketch approval 15% Upon first approved progress update 15% Upon second approved progress update 40% upon completion, approval and file transfer. All rights will be transferred to me upon final payment, but you will be allowed to display the final piece in your portfolio. Those who have had experience with video game concept art, environments and illustrations will be given priority. The higher the quality, the higher the pay.