I must admit I was very surprised at the quality of the erotic Studio Ghibli parodies around; they seem capable of attracting some talented artists indeed. You can see the fruits of their labours in these images.
Nausicaa seems to feature prominently, which is as well as the manga is a truly magnificent work. Kiki and Mononoke Hime also seem a popular choice for artists, though as yet the more recent titles are poorly represented. Perhaps they are unsuitable?
Since after culling deficient images there turned out to be rather more than anticipated, a portion was excepted and instead placed on the Channel, where you can as ever browse all these images and more.
The manga style series (see the Channel for the text versions) below are by Orga, in case you are wondering.