seascape vs waterscape

seascape and waterscape both are nouns.

Word	Noun	Adjective	Verb	Adverb
seascape	Yes	No	No	No
waterscape	Yes	No	No	No

As nouns, seascape and waterscape are synonyms defined as:

seascape and waterscape: a painting of the sea (as distinguished from a landscape)

seascape (noun)	waterscape (noun)
a painting of the sea (as distinguished from a landscape)	a painting of the sea (as distinguished from a landscape)
a view of the sea