Artwork Required for Video Game

I am working on a top down 2D shooter, which requires some tweaks to the art and additional artwork. See the video here : [login to view URL] 1. Adjustments to a spritesheet, adding more frames to allow for a longer blood spill. See video for the boss death sequence. 2. Concept art of a character based on a picture that I will provide, however, the pose must be different. 1280px x 720px. 3. Static images (256px x 256px) of the following: These images must be drawn from a top down angle. If you look in the video, you will see various objects scattered about the place, such as a can, a crumpled up bottle etc - these are the sort of thing I am looking for, but specifically require the following. a. Two different types of cacti. b. Bull skull. c. Human skeleton (lying down of course) in two different poses. 4. I need something to replace the green projectile that the boss shoots. I would like to keep a similar colour, but need it to look more professional, like a gooey spit type thing. I would appreciate it if you could PM me the individual charges for each of the pieces of work listed above. Should you require additional information or are unsure of what I mean, please ask me, so that I can make things clearer as I would rather you ask than waste time doing the wrong thing. NOTE: I am not interested in doing any form of royalty payment; I just want a simple once off fee for the artwork involved. My budget for this is really small, but more work could be forthcoming for the right candidate.