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What are those purple lines in the Background?
It is called the Astral Web that holds entire world of the dreams in one place.
What is that butterfly?
It is Dream pet. Her first animal she created in the world of the dreams.
What about that floating islands?
All of them are places where one or more ponies can meet to experience one dream.
Why some of the islands are empty?
Because they are waiting for next visitors.
100 Deviations ? Sure why not ^^ And here it is. A special comic for special occasion. You wanted to know how her Land of the dreams look like so here you go.
Comic was mostly a training ground for me. I hope I remembered about everything.