EBay listing picture

We need a eBay picture designing. It is for an iPhone unlocking service. There will need to be variations of the design. One for ee, one for O2, one for Vodafone. It needs to stand our amongst other listings. Our service is the fastest service on eBay and therefore as well as standing out it needs to highlight the speed of our service. Most services are done within 24 hours so this should be the main advertisement, that it is a 24 hour service.

So we need one main picture that will show 24 hours for EE iPhone unlocking. Then the second and third image should be the same but for O2 and Vodafone. So maybe just an EE image on the first, voda on the second etc.