Scribe Mobile Optimisation issues.

I have finally gotten this page http://www.melaniemay.com/portfolios looking exactly how I want it on desktop, how ever it is not displaying correctly on mobile or tablet. The issue is with the image captions, they seem not to be mobile optimised. Can you have a look and tell me how I can get them to display on mobile as they do on desktop? i.e underneath each photo and not covered up/hidden or blocking the photos?

Thank you