Your pen doesn't work for me (using Chrome v47.0.2 latest for MAC) - think it might be a browser thing 
Issue seems to be the parallax doesnt work and it doesnt show all the images and there is huge white space.
So decided to try in Safari and FIreFox - and it works ok.... [confused] ... Just Chrome it wont work on????
However the original working Pen i created with no ionic included works fine on Chrome....