Full rigged ship, i am stuck in a step

[Kundalini]

Hi
This is the first time i ask help in an origami folding secuence, usually i can resolve it. I am sure with your help i could fold it in least time.

I am folding Full rigged ship, designed by Patricia Crawford. It appear in a epic book called Creating Origami by Nolan
20151109_085847 by Kundalini Zero, en Flickr

20151109_090151 by Kundalini Zero, en Flickr

20151109_090007 by Kundalini Zero, en Flickr

20151109_090012 by Kundalini Zero, en Flickr

20151109_090018 by Kundalini Zero, en Flickr

I am stuck in step 17. I can not resolve step 18 [emoji24]

I hope someone could help me

[Brimstone]

From the description it seem that there is a valley crease missing, it should go from the left corner to the right corner and with it you should be able to do the rabbit ear.

[idooi]

This is like the ear of Satoshi kamiya's unicorn. Warp the paper around so the white side is up.