Sparklenation guy,eh?
-If I were you, I would get that laboratory out of the center to the right corner or something<br>and have the TH in the center?
-After you finish up your archer towers, I think you can get to upgrade your teslas if you have them..
-I'd upgrade the air defense first, then the mortar..
-I don't know about upgrading the DE storage,though but if it's possible, do so, because you need 20k for your BK right?
Walls should be upgraded as your resources build. Never let your resources fully max out; if this is happening, you should be spending some resources on walls as you go along to keep your resources from being wasted.
It doesn't seem like a farming base, neither a trophy base..
Why don't you just search for bases on Youtube? I had a pretty good one watching one of them..
P.S Don't upgrade to TH8 unless you are maxed out everything//exceptions are Gold Mines, Elixir Collectors, the Barbarian King, and all research that requires Dark Elixir. These do not need to be maxed out in order to move onto Town Hall 8. It is much easier to get Dark Elixir at TH8 as opposed to TH7; you can max out your Barbarian King at TH8 much more readily than TH7. Even at TH8, you will not max our your Dark Elixir research before moving on to TH9.