Same photo as just posted elsewhere but here I propose a new post processing; nothing special more than framing; the left part of the wave was put outside by cropping the background then usual framing techniques were applied; as such now it fit well in my series about games with paper and light; this is a shot of A4 paper size shaped in the way you see and shooted using a green tungsten lamp.
Good to see your work again, Antonio. This is an especially attractive and elegant abstract. The smooth tonal gradation is a fine achievement. Good work . . .