I think one of my annoyances with SketchUp is just have to do with finding the right plant objects to use. If a picture looks fairly realistic the plants need to be pretty darn close the actual plant being spec’ed in the plan otherwise homeowners get confused. With a hand-drawing you can just be like, “oh yeah, this is an artistic rendition”.
Again, these are not my design they are from the wonderful Susan at Garden Alchemy.
Oh, yeah, I also created that metal hoop sculpture you see in the photos in SketchUp and you can find it in the 3D Warehouse and use it if you want to!