A mystical holographic illustration featuring three medical-themed characters in Halloween costumes. A black cat wearing a nurse cap and stethoscope around its neck, a ghost draped in flowing medical scrubs with a holographic sheen, and a mummy cat wrapped in white medical bandages with a tiny clipboard accessory. All characters feature the same iridescent rainbow holographic effect with deep black silhouettes and bright glowing eyes. Spider web backdrop with floating medical crosses and pill capsules instead of bats. The holographic rainbow sheen covers all costume elements and medical accessories, creating prismatic color shifts across purples, greens, blues, and golds. Moody purple gradient background with subtle sparkle effects. The design is print-ready, fully isolated on a white background with no shadows or textures, fully contained within canvas boundaries with no cut-off elements and proper margins around all elements, and intended for use in t-shirt printing. | PODspy AI Design
