Paisley, I would want to know if the clay would be thin enough to be able to pour evenly when melted. maybe if you used an old crock pot and a hair dryer to keep things moving, perhaps using an old credit card to try to spread it around.
Though I guess the best thing would be to call monster makers and find out what they think

You've done a fantastic job, Jazz. I had a similar problem with the pigments not working like I expected, but it's still a great first tail. I imagine the next one you make will be amazing!

Since you're still growing, do you have any plans for when you grow out of this tail?