Most business entities have a social media presence in the form of a page in Facebook. People are very comfortable with the platform and it is important to recognise the importance to having one.
The brand Best Antigua who run Antigua Transfers like many simply had a photo they found handy at the time their page was created. It is with pleasure that we came up with a new design that would look good on the biggest highest resolution monitors and also the handy mobile phone.
Ideally you will also design your assets across other social media platforms to match and create a cohesive brand and message.
It is important to note that social media is apt to change their interface and dimensions with little regard to how it would impact it's users. So the owness is on you to keep a regular presence, check in a couple of times a week across all your pages and also check cross device.