There is a condition called aphantasia, in which people are unable to visualise things, but are perfectly capable of doing visual tasks, such as art. The quest

There is a condition called aphantasia, in which people are unable to visualise things, but are perfectly capable of doing visual tasks, such as art. The question "is this animal conscious" is quite close to a question "does this person have aphantasia", and both seem to be perfectly valid and answerable.