Create an image featuring a jester character with a whimsical expression. The character should have vibrant green hair styled in a messy fashion, coupled with face paint that includes exaggerated red mouth and blue teardrop designs around the eyes. Instead of a red jacket, dress the character in a deep blue vest, while the background remains dark to create a dramatic contrast. The jester should have an enigmatic smile, capturing a blend of mischief and melancholy, with the lighting focused on the upper half of the face.