Please back up and show the whole front yard and house. It looks like there's a lot missing.

I second the concept of a "relaxed, old fashioned garden that says “farmhouse” - yes with grass meadows. With 140 acres you will have plenty chores. There is no need to make the grounds around the house into another constant chore, unless one of you is an avid gardener, well then we can't stop you. Some ideas to ponder: A farm house landscape needs a legacy tree, that single, large, perfectly shaped, mature, deciduous tree. You have only shown us one view of the land. That tree might belong on a different side of the house. Someone has to plant that tree first. What is the state tree of Missouri? What is your favorite big tree? Give it the room to live to be hundreds of years old. Be the people who planted that tree. Piet Oudolf is a great source for inspiration. His work is based on very intentional layout of plants. I think you could go with a more specific to your place, natural grassland meadow and still mimic Oudolf very well. A grass meadow is probably the best way to live with deer. Plenty forage and color for everybody. Paths are most important in this kind of landscape to give it intention. Mowing would be easiest it seems and just done regularly with the areas kept as lawn. You can add a touch of modern or formal with sculpture placed in a meadow. Could even be done in plants. Picture this off in the distance from a primary view from the house, rising from the meadow, a row of columnar evergreens standing alone, closely planted to make a green wall or hedge shape with a single Lime Light kind hydrangea given the room to grow to its massive self when left alone. First thing I would think about in laying out your landscape is the traffic patterns of people and the machines you will be using. If you do any regrading or bring in top soil think about grading the paths first and making them rideable in ATV's. That will help tell you where the gardens go. There is joy to be found out there.

a plan usually starts with some goals ... do you have any goals.. other than just filling it up .. do you want to block a sight line ... either towards the house.. or away?? stand inside that picture window.. and look out ... what do you see??... do you always want to see it ... or do you want the neighbor always looking in??? from the car.. the last pic.. do you want to be able to see the door coming in??? .. perhaps a safety issue???? once you can state some goals ... then you can come up with a concept ... and ONLY THEN ... do you start picking plants ... ken

As much as I love the burning bushes I agree they have to go. @sigrid-thank you for the plant ideas, had to look some of them up, beautiful! AND looks that most of them are perennials, which is an additional bonus! Thanks again!