New answers tagged style
They look kind of surrealist. I would say the best technique to achieve something like this would be Illustrator for the shapes and Photoshop for the texture and colours because they definitely have a soft grungy quality to them but the lines are clean.
The dashes are usually used in wireframe designs and scamps. I would call this a flat design mockup concept. When I ran a search I came across this http://www.titanui.com/17339-flat-designed-mobile-cooking-app-wireframe-psd/ Hope it answers your doubt
It can be referred as duotone art. See for exampe Wikipedia-Duotone and printer national-duotone
I'd call it two value notan photography
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