simple but tasteful 24 x 36 pdf poster for Princeton academic conference

This is what a business in United States was looking for in their poster design

I would like a simple but tasteful 24 x 36 pdf poster for an academic conference at Princeton about studying the effect of technology on development in Kenya.

The poster should creatively displays three blocks of text and three graphics. Two of the graphics and all the blocks of text are completely ready (see attached). The last graphic should be a super simple illustration explaining the central question of my paper:

Does technology effect development through improving situational awareness of decision makers (efficiency) OR through increased citizen pressure (transparency)?

See attached for more. I'm thinking sleek, modern and bold, but not too loud. Read more