Why use excel for this? How about using PowerPoint or something like AutoCAD?
It is...but why ??
IMHO, most graphics created are simply done to test the abilities of both the user and the application.
Have a look at this article, with a free download
https://blogs.office.com/2015/02/18/excel-fun-build-3d-graphics-spreadsheet/
to get some of an idea on Art and drawings in Excel, google Tatsuo Horiuchi and Shukei....both of whom have created very complex art shapes in EXcel