This mecha paper model is Aphrodite A, giant female robot built from the remains of Aphrodite, in the same lieu as Z Mazinger, based on the Mazinger Z (Tranzor Z) manga and anime series, the papercraft is created by AnimeMania.
After its creation, Sayaka Yumi became its pilot and fought beside Koji Kabuto and the Z Mazinger. Unlike the more robotic versions of Aphrodite A, the one in Z Mazinger has a much more human-like appearance, even sporting purple hair. It is adorned in Greek-like armor, with the breasts partly exposed. [Source: wikia]
You can download this robot paper model here: Mazinger Z - Aphrodite A Free Robot Paper Model Download