Simple Flash Platform Game Backgrounds

I need backgrounds designed for a series of simple platform flash games similar to the draft demo game attached. I need the backgrounds delivered as layered psd files with different image areas in their own layeres split by colors / shadows / lineart etc. Basically the images need to be split as much as possible with as many things as possible useable "alone". If you place a dead rat on a large dirty brick floor, the floor has to be a layer group - with layer groups for floor bricks - that each have layers with a base brick shape, fills, effects, layers for enhancements such as dirt, moist etc. Another layer group would then be "bugs" "animals" or "misc" where objects such as skulls, rats et.c are available in their own groups with sub layers. Every background for each "theme" must be 1200 px wide and 600 px heigh (300 dpi) and designed so that it can be used as a background loop as well as match the other backgrounds for the same theme. (the start and end of each image must match together). Each theme will need a series of 10+ images that can be used together in any combination to make a themed level. The images must be designed to match a character in size similar to the one in the attached swf file with a chibi theme. Background themes: ************* Theme 1 ************ Medieval Castle - Inside This theme must have backgrounds that make up a journey inside a medieval castle-like level with everything from large brick walls and common areas to royal areas with drapes on the walls and everything else that make the level seam realistic. The journey must star at the castle entrance and end in a throne room and include an place where a path / door / stairs down exist to a prison area. ************* Theme 2 ************ Prison / Dungeon - Inside This theme must have backgrounds that make up a journey inside a medieval castle-like dungeon / prison level with everything from dirty walls and prison cells to rats and skulls on the grounds and everything else that make the level seam realistic. The journey must start from an area similar to the path / door / stairs area of the first theme level, pass several prison cells and end in a large torture area. I hope to have a great deal of additional themes designed over time, this project is mostly ment as a teaser project to find a possible long time provider.