It's a feature that basically allows you to upload up to 99 images into what's called a Moodboard then it gives you a code for your text prompts that let you generate images in a style that's created from them.
Prompt for first: A beautiful Christmas scene with Santa Claus and his sleigh in the center, surrounded by a magical snow-covered town, children playing around him, people sitting at tables celebrating the holiday season, lots of gifts under the trees, colorful lights hanging from the ceiling, chandeliers, horses pulling a carriage in the background, vibrant colors, intricate details, high resolution, in the style of a realistic painter. --quality 2 --ar 16:9
Prompt for the other two: Topdown screenshot from an SNES jRPG of A beautiful Christmas scene with Santa Claus and his sleigh in the center, surrounded by a magical snow-covered town, children playing around him, people sitting at tables celebrating the holiday season, lots of gifts under the trees, colorful lights hanging from the ceiling, chandeliers, horses pulling a carriage --ar 16:9
Every oil painting I could find around my mom's apartment.
RPG Maker MV RTP images
Final Fantasy VI screenshots