A monochrome horror style with random appearances of ink splatters and drips. It excels at grim and decaying subjects. The full effect with ink appears best on isolated subjects and house interiors. Other scenes can work, but they may look more like black and white photographs with an eerie atmosphere.

You can enhance the effects by using horror related words in your prompt such as creepy, dark, grim, eerie, decaying, scary, etc. If you want more of the ink effect, you can use words like ink splatters and drips. It also works well with creepy-cute subjects by adding the word "cute".