pictures looked nice Boo, I assume that you took the one dog picture to show us the dirt,
looks pretty dry and very light brown. Organic matter of any and all types will do you a world of good there. The grass looked green, so I am guessing that you have some top soil there to work with. Many developments around here strip the top soil and sell it leaving just enough to grow grass. I hope you are in a little better shape, but as you work and improve the soil you will find that it does not matter, you will make your own growing soil there in your beds. Think this way, if it came out of the soil, it can go back into the soil. So Leaves, grass clippings, news paper, wood chips, poop of any kind, veggie plants and stocks, limbs, wood, what ever you have that will rot will work. You will be amazed what things look like in a very short time. Don't be afraid of the work of double digging, it has paid off big for me over the years. Even if all you do is remove one spade deep and loosen the sub-soil with a digging fork it gives the roots someplace to go. If you add organic matter and logs down deep all the better. Don't try to build everything all at once. If you can only improve 1 bed a year with the time you have thats OK. If you want to put in all of the beds and then work to improve them over time, thats OK too. There is really no right or wrong way, only the Boo way at your place, so go ahead and get your hands dirty.
Never doubt that a small group of dedicated people can change the world, indeed it is the only thing that ever has.