Nightmare Nyx VS Apple Japaness, coloured

Has 3 secret references in the pict
Muffin to whoever find them
here a clue per each reference :
1:Weapon
2:Apples
3:NightMare

Was done wit authorization of who ? just check the art cuz the answer is in it
I dint do the sketch...



Improving in time need to draw, last art was 48h+, this one was around 5-7h.
Also, i know i got the wrong hair colour but it is already to late, shading was already done so i cant change the colour now.

_{in case you cant find the answer, is about a japaness weapon that look like a katana but is spelled close to shotgun word, referring to rhythm is magic apple apple apple remix were applejack slide changelings wit that japaness sabre, and the sketch author name [link] who authorized me to colour it.}