Generate a full-length image of Wilma Flintstone, maintaining her original head while altering her body to match the athletic physique of Nightwing. Ensure her outfit aligns with her classic style but incorporates elements that reflect her new body type. The background should be a suitable setting that merges the prehistoric world of the Flintstones with the modern, urban aesthetic associated with Nightwing, such as a rocky landscape reflecting Bedrock alongside a nighttime city skyline. Ensure colors are vibrant and details of both characters are clearly represented.
