Are my psychic impressions during subconscious channeling accurate, or just my subconscious trying to fill the time by creating images of its own?

As you have seen intuitively, these are all the consequence of linking intuitively to your subject. This happens in parallel to the connection that allows the channeling to take place. The connection involves multiple frequencies. Keep in mind that for some subjects it is pure consciousness of a quite different sort you may be wanting to converse with, so the translator must be able to take that information and send it to you in a way that is decipherable. While you are desiring words as being the easiest to understand and interpret with a precise meaning as opposed to a picture which may possibly be misinterpreted, pictures can come as well and this may well happen from certain subjects. Because they think in this way in the consciousness, it's best represented in this way, and because you are able to see visually with your highly developed clairvoyance it may be the most efficient way for you to gain knowledge and information. When it happens in sessions where you are receiving a stream of statements verbally from a client there will always be additional energies that are coming alongside and can't be sensed through your other modalities. These are valid impressions. They are coming from the subject and are not created by your subconscious looking for something to do or straining to understand and trying to fill in blanks. You have a good inner balance here and are patiently waiting for information to appear and you are not frontloading things nor overriding impressions and causing misinterpretation and false information to come forth.