Mass Product Photo Editing / Retouching

I have a website and I have many images which need editing which I am looking to outsource providing the price is right. All photos are taken on white backgrounds and the backgrounds need cleaning up and the items need bringing out to life. This is pretty simple most of the time as they simply need cropping and brightening up. I just find it difficult when the items themselves are a light colour. \r\n\r\nAnother job which many of them need doing is basically making a cover photo with images of a product in multiple colours are put into one. I have provided a sample of this. \r\n\r\nI have also attached some other unedited items which are light coloured. You can touch these up to show as samples. \r\n\r\nI am aware that my photoshopping skills are not the best so your work would have to be of a better standard in order for me to consider taking you on would ideally want a price per picture. You would be looking at doing thousands of products. Baring this in mind, please give a sensible price per picture. If you prefer work by hour, please give as many details as possible of how many products you are able to do in that time.\r\n\r\nIf you intend to place a bid, please include all details of what your bid includes. If you do sample of all the attached files and offer good detailed and plain to understand prices, you will stand a far better chance of getting selected as I do NOT have the time to email every single person to find out more. \r\n\r\nIf you are serious - SHOW IT!\r\n\r\n