The Church's guideline concerning placement of the angel Moroni figures is that where possible, they should face eastward. Sometimes, however, the angel Moroni figure may face another direction in order to align it with the orientation of the temple.

Do all LDS temples face east?

Temples are placed on the site in the manner that is most practical and artistically pleasing for that particular site. They can face in any direction.

Why do statues face East?

But why is she facing east? ... Facing east or west, the sun is rising or setting upon the figure, and south is good for general through-the-day sunlight. But in our hemisphere, statues facing north get the least direct light.