Reposting for linking to World of Academagia thread.
Disguise Self to emulate someone with Revision:
It's actually much easier to do that via Glamour, but as you note, close scrutiny is the problem. That kind of Revision is well beyond Year 2, though- that might place in Year 5, or possibly beyond, as changing form via Revision *without dying* is pretty sophisticated stuff.
The goal is to emulate someone well enough to pass on close inspection as that person- that's much more difficult than those other examples, because you must be exact. If you want to change your features, and don't mind necessarily what the result will be within fairly broad bounds, the problem is easier to solve.