AGideas 2016 Flier - Thumbnails ideas

Below I have posted some of the ideas (thumbnails) that I'm thinking of using for the 2016 AGideas Flier. At the start I just wanted to think outside the box thou at the same time having legibility and eager eye to read factor. After taking this into account I also wanted to give it a feel of the designer who will be speaking at the forum " Harry Pearce " so I looked for simplistic and in your face idea focusing on Typeface, Goethe color theory and Negative space ( White Space ). There are three I like but please comment and give feedback let me know what you think??