That looks great. Now that you are over the basic fear of socks you will find that turning a heel and working a gusset are very easy. It is simply a new technique and like all new techniques take it a little slow and don't be afraid to frog and do those stitches over again.
Suggestion is to put in a life line just before you start the heel. That way there is no problem restarting the heel.
What do you plan for your next pair?