Hoàng Tiến Quyết
Hoàng Tiến Quyết a Vietnamese artist created curved paper origami using a difficult technique known as wet-folding. This technique adds element of sculpture and the result are remarkable.
The technique is difficult because the water need to be precise. Too little water and the paper dries before the folding is done; too much water, and the paper will rip.
Checkout some of his works below.
Also check out his Facebook account for more info.