Create banner adverts for our affiliates

Design details: Hi all,

I'm looking to work with someone who has a very creative eye and has experience in working with affiliates and designing banner adds that they will use.

We're a business mobile comparison website and we already have some banners that have been created, we're now looking for more specific ones that will include the below:
- Compare the best iPhone 6/6Plus business deals online (image of iphone 6/6Plus with company colours)
- Compare the cheapest business SIM only deals (image of SIM's with company colours etc)

When these are created we want them to be downloaded by our affiliates so they can use them on their own website to drive business to our site.

We're looking for a few of these adverts and they should be made so that they can be easily/quickly edited to change the handset image, for example we might want to change the iPhone 6 to a Samsung S6 etc.

The images will be uploaded to our tracking system and then the affiliate will download. If you have any questions please let me know.

This will be an on-going job
Banner sizes: Leaderboards 728x90 Skyscrapers 120x600 Square 250x250 Full banner 468x60
Ideas for the visual style: Look at our site for company colours etc
Website url: www.comparebusinessphones.co.uk
Extra notes: