@SpawnlingPreemptive question about dorms, before they come into the scene- To what degree are they customised for comfort, as opposed to necessity? What expenses were taken preparing them? For example, a vampire might not need much more than a garlic-free windowless room with a wooden coffin, but they would probably prefer a stone sarcophagus and at least one chandelier (running from stereotypes, anyway).
Your needs are met within a reasonable measure, but price is a factor. A vampire will be put in a room that has no windows, and is furnished much like a regular room, but their coffin would probably be plywood painted black with a cotton padded interior. Not uncomfortable, but affordable.
I'll use your character as an example: She's tall, but humanoid. As such, her bed will be much longer than others, to allow enough space to comfortably lay out on it. However, her desk or cabinets would be regular, as it doesn't actively hinder her well-being if she has to stoop to get things.
The dragons here would get larger rooms, but that is a matter of size, not necessarily comfort. They themselves may find the rooms still rather small, much like a college student would find their room to be small. It suits their needs, but it's far from lavish. Furniture are stock bulk items, generic with only minor modifications as needed. Curtains are basic cloth, everything is a neutral color. Those with wings would not have ceiling fans as the risk of having them injured when stretching would be too high.
The only exception to this is the bathrooms. The baths are VERY large, with oversized showers and actual tubs, that are well maintained. A variety of toilets as well for different anatomy requirements. This is because it's related to hygiene and thus the health of the student.
A good rule of thumb is assume it's cheap, but works. If it's something that would put a strain on the character's health *physical, emotional, or mental* then it's probably a much higher quality than one would expect.
I should probably mention, you guys are NOT the only exchange students, so there's a lot of other species running around.