This is a skin of Peach, possessed by The Shadow Queen from the console RPG game Paper Mario: The Thousand-Year Door.

NOTE: The main variant of this skin uses the new Alex player model! If you plan to upload
this skin to the server manually, In order to get the most out of this
skin, you must follow these instructions:

1. Sign into your account at Minecraft.net, and select your profile.

2. Before you upload the skin to the server, Note the two options
asking you which model your skin fits. Select "My skin fits on the new
"Alex" player model."

3. Upload the skin to the server!

Also note that the skin, and the Alex player model AREN'T compatible with mc versions 1.7.9 and older.

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Want a version of the Shadow Queen that just uses the classic steve model? Grab it at this link: http://imgur.com/tlNP3XV

All variations of the Shadow Queen Peach skin are exclusive to Minecraft versions1.8 and beyond.