I like the character you've created so far a lot.
There are still a few errors in it: Deficient Animal is a form deficiency (minor): Only Creo, Intellego, Muto, Perdo and Muto are techniques.
If he had a university degree, he'd have to take the Magister major virtue (errata allow combining it with Hermetic mage).
You can come from a tradition of Wise Women, but as a Hermetic Magus, you don't have to write it down (or pay for it).
My I ask for one more very minor change: Can you make one of the other minor hermetic virtues into the house virtue (cyclic magic, for example, feels less hermetic and mre ex misc than mastered spells).
After changing the virtues, count them again to see if you have the right number.
I see your character as a promising young bloke (very intelligent, excellent memory, cautious), who failed to become a Bjornaer and studied hard to show them what it takes to be a Mage. Not too complicated a concept, but coherent, and plausible. His success in making it despite being turned down is the stuff that can make a mage optimistic and overconfident.