These cement figures dangling from umbrellas within a narrow space inside the EBC office center in Prague are part of a installation titled Slight Uncertainty by Czech artist Michal Trpák. Check out much more of his sculptural work on his website.
"Vertical Landscape" by Eiko Ojala. It looks like a paper landscape but the artist actually works digitally and hand-draws all the elements to look like they're cut out of people. (Hint: the shadows help!