I need a photoshop pro for small thing

Hi to all, we are building a website and on the homepage we have a cellphone and macbook as a picture describing our website of ads serving. We need someone who is able to photoshop small pictures into that picture itself we have (mac & cell), we need in this macbook to have a different pictures than in the cellphone,. basically we need fictive content in the screens of these devices with ads showing like we are an ad serving network.. We will provide the link of the website and you will see the picture on site as well as I will provide the png picture file without anything in the screens, it is basically a small task, but I need someone who is the best at this, Last web designer was good at html, css, bootstrap etc etc and not at design, we basically are half way done with that picture on site, I mean half way done with what we want here. I basically need someone to fill in the screens of the macbook and cellphone with fictive websites with ads showing with the small blue triangles in top right corners like ads have... basically this is our way to show what we will do... I need a person who is good at this, who has done this kind of work on Freelancer before, who will deliver quality design and feel. The inside of the macbook and cell need to also match the website colors, I will provide link once project accepted, for all content inside devices preferably non-copyrighted! I am providing the picture of the devices as well in project details, please see. I need the picture back once completed in maybe 2 different type files, eg: png,svg.. Will take a day or two to see offers, thanks If work is good, will re-hire shortly for more work of course, thanks to All.