Posted: 10/08/2013 at 09:02
For that steep back slope, I'd say "wildflower meadow," probably partly because it looks like it's halfway there already. It'd be a great place for birds to hunt bugs.
Alternative idea: orchard.
On a slope like that, you don't want high maintenance stuff and you don't want anything that produces its own tripwires, so brambles and honeysuckles are probably things to avoid.
For the front, low shrubs. Low, because you don't want them to shade out the place you stood to take that picture. Hardy perennials are your friends, because you only have to buy them once and plant them once. If you've got a cheap source of rocks, you could turn the whole thing into a terraced strawberry field, but that may be taking "I like strawberries" a bit too far. A few interesting "architectural" plants and a lot of year-round foliage, with something in flower most months, should work.
I'd advise against bulbs, because they don't hold the soil in place very well, especially when they're dormant, so your whole garden would get washed downhill quite quickly.
If that's an ash tree drooping down on the right of the first image, I'd suggest cutting that branch back quite hard before you start, or it'll be hitting you on the head while you work and then you'll have nowhere to stand to cut it without trampling your new plants.