Base prompt for first: "Sherlock with John Watson, highly detailed skin, dramatic action pose, volumetric light, high quality, digital painting, artstation, smooth, sharp focus"

Modified to: "Sherlock with John Watson in the Tardis, highly detailed skin, dramatic action pose, volumetric light, high quality, digital painting, artstation, smooth, sharp focus 8k resolution holographic astral cosmic illustration mixed media by Pablo Amaringo" for the second

Negative prompt used on both: out of frame, off camera, ugly, deformed, poorly drawn hands, extra fingers, missing fingers, missing thumb, missing limbs, extra limbs, NSFW, nudity, doubles, text, signature, words, watermark, logo

And NightCafe's version of SD merrily ignored most of it. Can't figure what I'm doing wrong but I've never had much luck there. :-(