After Effects Animation for iPhone App

Hello, We require an animation creating (in varying sizes) for our iPhone app. It will need to be made available in PNG Sequence format and the following sizes: 680 x 480 1360 x 960 275 x 155 550 x 310 265 x 255 530 x 510 It is a simple line animation, basically lines moving around the screen and should have an effect such as this ([login to view URL]) but with a white glow and blue sparkles coming off of it. There should be an initial line drawn on the screen, and then a few seconds later more lines drawn to create a picture, the lines should then all merge into one and begin the process again drawing a line, and then more lines to create a picture, there should be 4 pictures in total and the animation should loop seemlessly. We will need to see a sample of your work based on our requirements before we award the project, due to receiving very sub standard work previously. Plenty of work available for an Adobe After Effects Ninja!!