simple website game

Want to build a mini game for my website. a simple mini game painting a wall. a fun way to drive a little traffic a few Random backgrounds, a tool chest to choose from supplies, the mouse cursor will be used to interact with the wall. basically, step by step on how to paint a wall. with a scoring system based on speed and quality. - I want to give the player / installing many options and then grade them on at the end on their work. using simple images from prepping with paper, pressure washing, sealant, brush and a roller. I want the brush to be more accurate than the roller on coloring the background. and the roller to not be easy to paint the edges. a sealant tube to treat cracks. if they don't prep the walls i want the paint to appear outside of the lines. I want 3 examples/ Radom maps. 1 a perfect new wall. 2. existing concrete wall with a crack. 3. An existing painted wall that wants the new color a shade lighter. These are examples of some different conditions. The tool chest will have all the painting stuff needed and then some tools not needed like, hammer, saw, power tool. if you use something not needed for the job its game over and it will say you lost your contract and were kicked off site! I want to game to give them and grade and then have some preloaded sayings depending on your ranges of quality and then give a breakdown of the correct steps with a good positive message.