That looks pretty great for a first try!
Experiment with different coils, wicking techniques, and coil placement. I have a mutation clone on the way from FastTech. I am stoked!
Are you more of a flavor chaser or do you want more cloudage? I just built my first twisted coil on my Doge v2 using 24g kanthal. The flavor blows every other build I have done out of the water! I suggest you try it in either case. It is pretty great. I did a sleeper build because the Doge only has one positive post hole. A sleeper coil uses one piece of wire (twisted kanthal in this case) to build two coils. With the mutation having two positive post holes, the sleeper is unnecessary.
Look on YouTube for a twisted coil build! Its got a good amount of surface area and its now my favorite.
But yeah, just mess around with different builds to get a feel for what you want/like! And if you have any questions, feel free to send me a message. I do not claim to be an expert in things but I will help you best I can!
Good luck!
-EJ