It's lovely, but if it were my yard (nice house!), I would want some taller plants worked in there for visual effect. It looks too flat but maybe that's the way you want it. The color splashes and different varieties of plants are nice. My neighbors did their whole front yard and both side yards in hosta and heuchera. It is shaded and looks nice, but overkill. Now I see they have the grass shaved off and neatly levelled bare soil on the part where you have killed yours. I don't have any ideas for what to put there. I'm thinking of doing the same thing because I don't have enough full-sun spots for my flowers, but I don't want to just plant it willy nilly, and I don't want portulaca no matter how fancy it is, I like have something nobody else does but complementary to what grows natively in my zone. I don't know about moving the rhododendron, but some fullness and small flowering trees nearer the house might be an idea like dogwood or redbud. I've no idea what that one name you mentioned is. Also there's no real accent like a bird bath or shepherd's hook for a feeder/hanging basket or anything like that. I don't care for garden statuary, but a lot of people like it. It needs something though. I wouldn't recommend a gazing ball, but I broke down and got one and perched it on a makeshift trellis for my clematis so I hope it will just show a little bit. Sigh. I wish I hadn't seen that dead grass. Are you going to use a tiller? I want to strip off the sod and till it but am afraid because there are some utility lines under there, don't know how deep but do know where they are. Now all the above is from a novice POV as I'm not trained for landscaping and don't have a particular knack for putting things together right so bear that in mind. I do know what I like when I see what others have done.

The amelanchier does look good there, and will certainly fill in nicely. I originally backed the cercis canadensis 'Forest Pansy' for contrast, but it does look nice as you have it. But perhaps the rhodie corner can host a japanese maple (acer palmatum) for that contrast--maybe a weeping variety would be nice. There are hundreds of choices there, and it's tough to go wrong.

Beautiful John. What kind of tree is that in the first group of pictures that has the black catkins? Is it some kind of willow or perhaps a birch? It's beautiful whatever it be! I like how you've mixed in so many plants of the same gray-blue color as your house, that "Federal Blue" color. Very artistic and clever. Love your Calla Lilies. I wish I could grow fragrant sweet peas like yours here on my property. The thistle-like plants are cool. You ought to plant a blue Agave near you front walk somewhere. I have two kinds, but have to grow them in large pots as they would freeze here, so they don't get really big like they would if grown in the ground. One is the same color as your house. Anyway, your front looks terrific. No Mow Grass! Thanks for sharing. ~ sweetannie4u

It looks like you have some rhododendrons and azaleas - I think:) They could be much fuller and lush but I am not sure how you would accomplish that. I would take pictures to a local landscape / garden center (not a home center store - you need someone with good local knowledge) and ask for advice. You may be able to work with what you have and just revitalize them, or you may need / want something new. I had to severely cut back a rhododendron do to some work being done on the house, and it came back beautifully and much fuller - but cut back at the wrong time and you will lose next years flowers - so get local advice because I am not in your zone. If you like gardening, pull out the front of the garden and put a variety of perennials and annuals in front of what you have (after revitalized). Again, your local garden center can lead you to the easiest plants to grow and maintain in your zone.