QuiltCon is the international exhibition of The Modern Quilt Guild (based in the US). The 2015 event was held in Austin, Texas last month.
Photos of the award winners are here, on the Modern Quilt Guild's blog.
The Best of Show award was won by Kathy York for her quilt called iQuilt - you can see some close up images showing the quilting, on Cat and Vee's blog, here, and four other excellent posts, with lots of beautiful images, labelled "QuiltCon 2015 ---" here, here, here (this one features quilts by Australian quilters) and here. It will take a while to get through all five posts, but if you love modern quilts, you will be enthralled.
Christa Watson (Christa Quilts) has also posted extensively (here and here) about QuiltCon, with many excellent photos, and three posts including the judges comments on her three judged entries (here, here and here) and what she has leaned from the experience. She followed up with some thoughts about modern quilting in light of her experience of QuiltCon.
A Google search on 'QuiltCon 2015' will bring up more reports, and many more images.