Attack On Titan crossover with Frozen and Adventure Time

In the crossover between Frozen and Attack on Titan, it looks like Anna and Elsa have joined the Survey Corps(well their blades are covered with blood so it's obvious they've killed Titans).  Instead of the wings they replaced the image with a snowflake.


In the second image it's a crossover with Adventure Time with Princess Bubblegum and Marceline(if I spelled her name wrong I'm sorry) and they are both going attack the Ice King and the lemon head guy who's name I forgot who are now Titans.   These two artworks are very impressive and creative.  The one with frozen is really detailed and the second image might be a little blurry but it's very good and would like to read a fanfiction of it.