Front images really only tell half story, you have plenty out the back Ben nice one, and as Watto said your design works fine.
Here is one of mind with a roof on it as Grant suggested, might suit you, mind you, you got it this far without us, so merely a suggestion/idea mate....good work Ben.
Hopefully the over 30 degree heat for awhile and coming will slow mind down, needs a trim every couple weeks.
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