Remove Background from Pics- and fix 5 image in one pic-ASAP

HI , I have 13-15 pictures in total, I want the back ground to be removed. And Want atleast 5 images to be added together as one image. I have three different colours in Dark Pink, Light Pink and Blue, For each image I want to have atleast 5 picsx3 different colours. I want the job to be completed by today within the next few hours. My budget is dollar fiveteen and not more than that. I have attached more than 15 + 2 sample reference. If you can do that , then please bid Thanks