Interlocking Mandalas

This was WAY more difficult that I thought it would be when I started it. In my mind it was going to be beautiful and simple and as it progressed I had to figure out what line was supposed to be on which level. I like the way it turned out, but I know that I could do a better job. I know that this is something that I need to work on more and learn more about. Any tips or tricks you have would be amazing.

Tell me if you have any tips on interlocking mandalas or if you have ever attempted this on your own and what were the results. Link your ideas in the comments below.