Now is it just me or is there something wrong with Jesus in this picture? I don't really remember him being 4 feet tall in all the scriptures, statues, paintings Iv'e seen of him. Did the artist just run out of room on the canvas and want to shove jesus' feet into the picture. Obviously these are not the correct answers.
The name of this piece is "The Mourning of the Dead Christ" by Andrea Mantegna, and yes, Mantegna  had a purpose for painting Jesus the way he did. The style of foreshortening is applied to Jesus' legs to pas them through the two dimensional frame of canvas, straight into the living and breathing space we are in at the moment we see the painting. The audience knows they can reach out and touch his wounds and feel his cold lifeless skin.