Getting started on landscaping

I finally got a couple things to put in the yard. I have a Dwarf North Star cherry tree that will go in the front yard, and some hydrangeas to put out along the side of the garage.

Other plans include putting river rock around the perimeter of the house and figuring out exactly what to do with the little area right in front of the house. I had petunias there last year but I didn't like how they get all gangly as the summer goes on. So if anyone has any suggestions, please post a comment!

Now for pictures.

This is my tree and the hydrangeas waiting to be planted:



This is where the cherry tree will go. The blue outlined area is where the rock will be. Enjoy the bonus artwork!



And this is the part I'm not quite sure what to do. I'm considering Shasta daisies or moss roses.