appearance vs visual aspect

appearance and visual aspect both are nouns.

Word	Noun	Adjective	Verb	Adverb
appearance	Yes	No	No	No
visual aspect	Yes	No	No	No

As nouns, appearance and visual aspect are synonyms defined as:

appearance and visual aspect: outward or visible aspect of a person or thing

appearance (noun)	visual aspect (noun)
the act of appearing in public view	outward or visible aspect of a person or thing
formal attendance (in court or at a hearing) of a party in an action
pretending that something is the case in order to make a good impression
outward or visible aspect of a person or thing
a mental representation
the event of coming into sight