It has the appearance of a baby with big purple head and blue eyes. It has three white adornments, located on the sides of its head and its chest and look similar to ribbons, its eyes are blue, and it is somewhat wearing a little dress. It looks similar to Ralts.
The "Goth" part of its name seems to refer to Gothic subculture, with the "ita" being a reference to Lolita. Hence the reference to the popular fashion in Japanese Harajuku culture, 'Gothic Lolita.' "Ita" is also a phrase used in Lolita circles to describe a person who is "doing it wrong". This trends follows similarly in the 'Goth' family.
Lolita is also a term for provocative young girls. The origin of this term was probably used shortly after the publication of Vladamir Nabakov's novel "Lolita".