Illustrate a cartoon-style Beetlejuice with his signature wild green hair, playfully sitting on a tombstone. Capture his mischievous personality with a cheeky grin and expressive, animated features. Surround Beetlejuice with lush green grass and add some whimsical, spooky touches like small, friendly ghosts or playful bats fluttering around. The tombstone should be adorned with subtle Halloween-themed details, like a carved jack-o'-lantern or cobwebs. How can you use vibrant colors and a fun, exaggerated style to convey Beetlejuice’s lively spirit while creating a charming, Halloween-inspired scene?