Step I:
On the right side, in the same position but symmetrically oriented with the characters facing right, create the same scene, but in a luminous Art Nouveau style. This will be based on the 2010 Alice in Wonderland film, where the Mad Hatter is played by Johnny Depp and Alice by Mia Wasikowska. To achieve the exact look I want for this right side, the Mad Hatter will be centered, as a counterpart to the other Mad Hatter, with Alice in the middle and the Cheshire Cat on the right. In the center, create a small bush of black roses on one side and red roses on the other, like a portal between the two worlds. Use a 21:9 aspect ratio or higher to create enough space.
Step II:
Remove David Bowie's hand from Alice's arm and place it holding the hat as in the original image (left side of the image). Only correct that detail; keep the rest of the scene the same. Use the pose in the attached original image as a reference.