Fantasy RPG Story Prompt 08

We thought this might be fun - we will share a copyright free image once a week and list some questions that might get your creative dungeon master juices flowing.
Where is this?
What's the purpose of this location?
What happens when a person enters the blue portal?
What happens when a person enters the green portal?
What's her name?
What'a her job?
What powers does she have?
Is that creature her pet or a creature that just lives in the vicinity?
How sentient is the creature?
What does she charge to allow individuals to use the portal?
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Some material from thegrinningfrog.com
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Picture Credits
Created by The Grinning Frog team - created a while ago and we don't have the component sources on this one, sorry! .
Picture License
This image is released under a CC0 licence and may be used freely for any purpose. No link back or attribution is required. Have fun with it!