how much? there were clothes hanging and i had a sound blanket behind amp
Just keep it in mind. If you’re not getting a good sound, it could be reflections off the walls. A small space like a closet is going to have all kinds of reflections going on. If you can’t hear them, all good. If you can, move your blanket etc. It will depend on a number of factors such as volume, type of mic etc.
If it sounds good, it is good.