A human paladin of light in ornate golden armor, wielding a sword and shield, casting rebuke undead against a hoard of menacing ghouls in a cemetery outside of an abandoned castle. Include glowing effects around the paladin's rebuke spell, depict the ghouls with rotting flesh and tattered clothes, and have the abandoned castle looming ominously in the background. The color scheme should feature gold and white for the paladin's armor, with radiant, glowing lighting to enhance the paladin's aura. Highlight the contrast between the paladin's golden armor and the dark surroundings, show the determination and courage in the paladin's expression, and emphasize the intensity of the battle against the menacing ghouls in the cemetery