I am mostly in agreement with blue-eyed pony.
She does appear to have good feet and good pastern angles. Good clean front legs, good width of chest. I do not think the angle of her hock is problematic, I think it's the straight stifles that are the culprit. Otherwise the angles in her hind end are adequate. What this translates to in practical terms is a horse you'll have to take care to keep fit, as otherwise she'll be prone to locking or slipping stifles.
Her shoulder is okay, not ideal - combined with the almost equal lengths of forearm and cannon, I would not expect her to show safe, but not spectacular form over fences.
Anything over training level dressage is going to be a challenge for her; she just isn't built to go round.
I was willing to cut her some slack on the herring gutted, assuming she was racing fit, but in your later photos when she has let down and put some weight on, it is still apparrent. For the vast majority of horses, it's not a critical flaw. For race horses and upper level event horses, it's a concern. If you're eventing her at the lower levels and condition her properly, it shouldn't be a problem.
If you like her and she's willing and eager to please, she could be successful at eventing or jumpers up to a certain level, say 3'6"ish.
Her confo flaws worry me more from a long term soundness perspective than an ability perspective - she's probably athletic enough to do anything you want her to do within reason.