Here's how my dragon's tail started out:
I like the spiny back of the beast, but not the spiny tail. For me the best way to deal with a situation like this is to leave the project for a day or so and then come back to it. So I did, and I quickly realised what I didn't like about the original tail. It's too irregular and too asymmetrical, and all those spines are just a bit much. So I pulled out a lot of the spines and cut some of them down, and replaced the ones I pulled out with smaller nodules like the ones I used on the back of the neck. Much better!
Why are some of the spines brown? Well, that's because I sped up the drying process by putting them in the bottom of the oven while I baked some bread. They're a little burnt because the temperature I use for bread is really a bit hot for paper mache.