I decided to do a quick check to see if the idea of Triton and Ursula being siblings was ever portrayed in a story. To my surprise, This was Disney’s original Idea. The company then decided against this, However in analyses of the movie made by Disney there are talks of a conspiracy that Triton and Ursula are Siblings it is just not mentioned, It was after these suspicions that Disney stated that this was in fact a very early idea. The Broadway musical of The Little Mermaid portrays Triton and Ursula as siblings.
Since this idea is already out there I feel I am back at the start I am really having a block this week when it comes to developing the story. I am hoping if I just power through and maybe concentrate on the drawings this week it will eventually come to me but for now I shall keep chipping away at it.