Sentence:  ... may not one say Homer is in this like a skilful <WSD>Improver</WSD>, who places a beautiful Statue in a well-disposed Garden so as to answer several Vistas, and by that Artifice one single Figure seems multiply'd into as many Objects as there are Openings from whence it may be viewed? 
Meaning of the word marked with <WSD> tags:  "Specifically", a person who improves land or property, a landscaper.