Create Background Images for Mobile App - repost

Looking for a graphic designer to design a series of background images for a mobile app. At least 6 unique images are necessary; however 5 of the images are all very closely related to the one main image that you create for the home screen. One main image would need to be created for the home screen, and that image can be modified slightly to create the other 5 or 6 images. Various sizes are needed for the images. Example sizes that may be needed. 640 x 960 640 x 920 640 x 1096 640 x 1136 640x 1096 960 x 1380 We will of course specify when the main images are done what sizes we need the images in. Ongoing work - We will need many others created after this job is completed. We also have other graphic design work available. We will provide samples to the project winner of other apps we have done as a starting point for your designs.