Hi.,
When we have visited your portfolio page there is no image source , it displays the empty image tag,
Refer : http://prntscr.com/j6qazl
So , make sure that you have assigned the images for the portfolio section, and kindly send us your WordPress admin login and FTP login credentials through the right bottom form located @http://themeforest.net/user/designthemes .So that, we will check and have a clear look from our end.
Note : You have followed the below knowledgebase step to make ssl site,
Refer : http://wesupport.wpengine.com/knowledge-base/redirect-your-http-site-to-https/