Start this on the side instead of straight on to get the slanted look.

It's kind of hard to tell in this picture, but these are on the side, not centered, so that it angles down to a side pony. Section the hair into 3 pieces & add your elastics.

Next, do the middle section first. Pull the previous pony straight back into it. Then do the 2 sides, criss-crossing over the middle piece.