Rainbowsphere
A mix of Noosphere v3 by skumerz and Rainbowpath by PatchMonk. You can use "Rainbowpath" in the prompt to enhance the style.
Preview image by Digiplay:
Original pages: https://civitai.com/models/36538?modelVersionId=107675 https://civitai.com/models/5528/rainbowpatch