Notes:

This image was created by Andrew Hussie for the webcomic Homestuck on March 15, 2011, and features the original interpretation of Rose Lalonde becoming grimdark, with grey skin and glowing eyes, plus black substances coming out of her body to represent the state of grimdarkness.

Rose also speaks in eldritch language. Even I don't understand that gobbeldy-goop.

Homestuck is a webcomic created by Andrew Hussie, launched on April 13, 2009. As of now, Homestuck has a strong fanbase and received numerous various memes dedicated to the webcomic, as well as a funded adventure game Kickstarter project (kickstarter.com/projects/14293468/homestuck-adventure-game).
KYM has an article on Homestuck, as well as a video.
Search Homestuck on KYM.

Source: mspaintadventures.com/?s=6&p=005543
Further reading: mspaintadventures.wikia.com/wiki/The_Noble_Circle_of_Horrorterrors (scroll down to Grimdarkness)

I do not take credit in the making of this image, nor do I own this image under any circumstance whatsoever at all.
No copyright infringement intended. Please don’t kill me.