you need some sort of hardscape-path or walkway leading to the front. right now it's all grass. dividing it w/walkways, path, etc, will do a lot more than a flowerbed. (you can do that too, but that giant swath of a football field needs something)

just an example of a path/steps leading to the front door. plant some trees elsewhere

I agree with creating a pathway to the front door first. I'd make it substantial, it's not like you won't have room for something grand.

But, think about how you want to use the front yard. Will you every entertain there. what time of day gets the most sun, is it mostly sun 6+ hrs per day? are the ground floor windows a full basement? Will planting affect the light/view for those windows.

Do you have service lines running to the house, would large trees interfer with plumbing lines

A vision of a finished product before you start will help.

I also urge you think about where shade trees are needed. Best place is first to the southwest/west and then east/southeast. You seem to have room for large trees at some distance with smaller, understory trees closer to house, bringing the foundation beds out to include the smaller trees.