Gargoyle story

A gargoyle statue in a museum is in love with the beautiful Grecian statue opposite him. However, he dares not approach her due to his physical disfigurement. One night as the museum closes, the painting behind the Grecian statue comes to life and something within drags her into the painting. The gargoyle hesitates, but decides to leap into the fray for his lady love.

He crosses the threshold. He then proceeds to pass through different worlds/ paintings by masters (Van Gogh, Da Vinci etc.), before he finally finds the Grecian statue in the clutches of a mythical beast. He proceeds to have an epic fight with the beast and manages to wound it. The beast retreats and the gargoyle and statue run for the closing portal. However, just before the Grecian statue can cross through, the mythical beast snags her arms and the portal closes over them, severing both arms. 

The gargoyle tries to retreat bashfully away, but the Grecian statue kisses him on the cheek. In the last scene they are both back in their original positions, but both are smiling at each other. 

Origin story of the Venus de Milo?