Edit background on my photos

I Got 2 pictures, which i would like you to edit the background on. The background picture has to be me laying in the Beach, on a towel surounded by sand, and maybe a couple of things which would be associated being on a Beach, like a suncream or the half of a sandal in a corner. Alternative i have to be laying on those deck chairs which you find around a hotel pool, with half my head sticking up from the chair, so u Can edit a background behind the [login to view URL] very important that the background doesnt look edited, it has to look as real as possible. I dont want to be clipped on a preset professionel background because those images has too Good quality and looks fake. So i Think the Best thing to do is taking the picture background yourself, and use it with my Photo. The light between my Photo and the background also has to look right so it looks [login to view URL] shadows on my pictures Can be removed.