Critique her??? PLZ

This is my 10 year old hannovarian/thoroughbred mare Rena.
I do dressage with her, we are currently training to get up the FEI childrens by next season (crossing my fingers!) Pease critique her, this was when we first got her and it looks to me like she was lacking some muscle in her bum and maybe neck...other then that, do you see any flaws with her for dressage?sorry, she's not square, but its the best picture I had

With her head turned that way, it's hard to do an accurate critique, but I like her uphill build, she's got nice clean legs, a decent topline, and while she was lacking a bit of muscle in her rear, she is fairly equal in all her body parts. She's got a lovely expresssion, and appears very well cared for

Thanks! Ya her topline isnt as elastic as it could be, but were also working on that (and building some more back muscles ) ;)

Anyone else?