2D Sprites and tiles for a platform game

Hi, I need a set of raster or vector graphics for a game prototype. Because I am an amateur game developer (however I am a professional programmer), this project covers only minimal set needed for creating a functional game. Please keep in mind that in case project succeed, I will order more graphics. The game (prototype) will have platformer-like view with mobile devices target. The size of tiles and objects should be typical for a platform game, while characters should be pretty small, but still clickable. The graphcis should be eye-candy, bright and prehistoric (like big nose - the caveman etc.) Please let me know the cost of following set of sprites and tiles: - platform tile - at least 3 tiles (left, repeatable mid, right) - ladder (bot, repeatable mid, top) - bridge would be nice to have (would be great if it has repeatable tile in it so the width would be adjustable) - two kind of trees - two kind of bush - two kind of stones - a building - the cave with 2 variants (may be very similar). Each building need to be in 4 states - building phases (like in good-old settlers) - a tiny flag (again like in settlers) - the character - a prehistoric human with following animations: * walking left/right (same animation) * doing nothing - 2 animations (like sleeping or reading newspaper) * enter / leave cave * climb up/down (on the ladder) * build * gather wood * gather stone (may be same as wood if applicable, may be separate) * walking with carry something (may be in some kind of a backpack) * attack (throw) * characters should have variants (again - a little change like hat or smthg is enough), not all variants have to have all animation - an enemy - some monster matching 'prehistoric' climate, needs only moving and one or two attack animations (charge and/or bite for example) - some little eye-candy decorations would be nice to have (some small plants, little rabbit or birds etc.) As it is a prototype, I would like to keep it simple and small, but still pretty. The work may be done in parts within weeks and each part may be pretty small (e.g. tiles, trees and stones as a one part, first character animation - second one, ladder and climbing third etc.). Please let me know if any details are missing.