Juddmonte Challenge'Juddmonte Challenge' by Rob Hefferan, acrylic on canvas, framed in cream wood with gold trim, 33" x 42" (84 cm x 107 cm). Juddmonte Challenge by Rob Hefferan is a vibrant, energetic equestrian painting that captures a racehorse and jockey in full stride. The artist uses bold, expressive strokes and a vivid spectrum of colorspinks, blues, oranges, and greensto create a dramatic, almost electric background that heightens the sense of speed and power.