'The vain queen rides a giraffe that remembers her daughter's hero.'
Since remembering is interpreted as looking back and She is depicted often as looking in a mirror, would it follow that the mirror should be oriented in such a way as to allow Perseus to be reflected
I took this screen off Stellarium and as you can see, Perseus is in the wrong place to be reflected.
I don't know how to change the viewpoint in this program to see the constellations from elsewhere, but surely if your pov was shifted (Maybe with reference to the Polaris arrow) you could reach a point where the mirror would reflect the Perseus constellation.
https://s22.postimg.org/4jha6sd5d/ss1crop.jpg
Sorry, I tried to post it inline but all I can manage without errors is a link.