I agree with coasterguy 77...
They all look the same, there are practicly no distinctive features, like track colour, track shape, and so on...
Or, when sfne posted that picture of a girl... That was just stupid IMO, how could anyone guess a coaster, when the only things you can see are a face of a girl, parts of the cars, and some parts of the railings...
seriously if your going to do a coaster that has no evidence of what it might be and looks like it can be about 300 different coasters.....at least give a gosh darn hint