Remove Background from Images, and Keynote Presentation.

I will delete all Messages dont have a link for Portfolio with Samples of work.
This is a 1 Job and depending of the quality will hire Part Time,
I have to create a Keynote Presentation adding some images and words are already in place in Spanish, I will provide Copy, The images I have need to be all in the same background, so we need to take the background in some of them.