Another good holly choice to consider would be the Sky Pencil holly. They grow tall and narrow instead of tall and wide.
Japanese Holly (Ilex crenata 'Sky Pencil')
There are also some smaller viburnums that could work also. A good source for getting info and buying some would be Classic Viburnums. You could possibly mix up the plantings with these and the holly for variety.
Here's the website for Classic Viburnums:
http://www.classicviburnums.co...
All in all I like your ideas for your yard. Suits the looks of your home nicely.
Are those pots on your porch? If so some colorful annuals would look great in there!!
