Product portfolio sydney pro to have clear labels of what each project

I am using Sydney pro theme and I have used Product portfolio widget which looks great but the only problem is that I can’t see how to customise the settings for the labelling of each product image. It’s ery important that the customer can see the name of the island they are clicking on for more information whether that is on hover or static and also it must also work on mobile too…

Can anyone help:
http://www.chcheck.co.uk/