Back around 1994, I published a story called "Landscapes", which I tried to make the ultimate "going into a picture" tale, with references to Hieronymus Bosch, Dorian Gray, Tom and Jerry, Night Gallery, and Richard Upton Pickman, among others:
". . . I tried exploring after dark my first few days here. I nearly ran headlong into one of the hideous walking corpses that rise from the earth in the night, seeking some mezzotint or voudou painting to climb through. I paid Mr. Buxton and hurried on my way.
"I followed a narrow lane through the rolling meadows; the countryside is easy on the eye, I'll give it that. Pastures on my left; on my right a young forest. The leaves were scarlet and gold and umber, but they had not yet fallen.
"Though somewhat in a hurry, I paused when I saw a curious figure jump through a Frame. It appeared to be a grey rabbit, but it ran upright like a human being. Its legs and arms were long, thin tubes; its arms ended in white-gloved hands. It ran across the fields, then it followed the lane for a few hundreds of yards and dashed into the trees.
"A short, pudgy man dressed in a dun-brown hunter's outfit climbed in through the same Frame the rabbit-creature had used. He glanced around momentarily, then he charged the copse. He carried in his arms a huge, double-barreled shotgun. Despite the shortness of his legs, he reached the trees in seconds and vanished as well."