Yes, wind to block. No great views.

It is the larger pieces that anchor a landscape, and you should decide where you want or need them. Summer is very hot where I live, so I put a large deciduous tree to the southwest of my house. It keeps my house cooler in the summer, but lets warming sun in during winter. If I lived where winds were strong I would plant a wind break to mitigate them. You should think about your climate and how it changes from season to season. Trees should be planted soonest because they take the longest to get to any size. Consider how large (width and height) each tree is expected to grow. Avoid positioning a tree where it could eventually pose a threat to your buildings or a neighbor's, such as fallen limbs or roots invading plumbing. Insurance may cover it, but better not to have to deal with such.

Second, but possibly more important to your situation, are shrubs. Fast growing types can hide eyesores and provide privacy as well as protect against wind. Again, consider how large any particular shrub will eventually get. If a shrub will eventually get 6' wide don't plant it closer than 3' to a wall, fence, pathway or your property line. Shrubs can define the edges of your property. They don't have to be tall unless you want to use them as a screen. They can be evergreen (broadleaf or conifer) or deciduous, and grown for flower as well as foliage. Here is a PHOTO of plants that define a property line.

Once you have your property outlined, you can put beds around, between, or in front of shrubs. For the first year after planting you will need to water, especially during dry periods. Look at landscaping as a continuing project. Over the years your priorities may change.

I'm not going to make recommendations for particular shrubs. You should visit a local nursery as they know your climate and soils, and which plants will do well. Neighbors can also tell you which plants worked for them and which ones failed. I think you should buy plants hardy to at least one zone colder than the one you are in due to the extremes in weather we have been having. Native trees and shrubs should not be overlooked.

Thank you for the details. I think I have those concepts covered, I'm more looking for specific layout possibilities as I am a very visual concrete person and have trouble visualizing. I am familiar with varieties of trees, shrubs, etc but need ideas for placement more than anything. And I think I am getting hung up on the fact that it is an inward diagonal wedge shape.

So, placement of the trees and shrubs is the issue, but I have ideas about what I want/like. I need more help on where to put what size planting and how to arrange.

Almost impossible to give you specifics on placement without knowing what you are going to be planting and how much space you have to cover.

Very generally, you want the tallest items nearest the property line, then graduating down into intermediate height shrubs with the lower growing choices closest in. The planting bed should be wide enough to accommodate the full grown size of any/all of the plants you include.

Draw out the area to scale on graph paper and then play around with the placements until you have groupings you like and that fit well together.

Is there an easy beginning website/tool that can help you visualize?

Generally, I'm looking at a tall deciduous tree in the corner. Possibly Elm or Sycamore? Smaller trees like a spineless holly (variety maybe Eagleston?) or Little Gem Magnolia, maybe a small cypress and/or pink dogwood along the border. Shrubs of maybe rhododendrons, azaleas, maybe knock out roses (open to other ideas of evergreen variety), with hostas and perrenial flowers (daffodils, Shasta daisies, mums etc).

There are free landscape design programs most of which can be downloaded. I haven't used any, so cannot make a recommendation. Here is a List of Six. Do a search for "free landscape design programs" for others.