First pic looks good those small tree/brush would make good cover.. someplace around or beiside that would be fine.. just dont do anything to large or it will stand out from above.

And for your question about strains that grow short and bushy. There are lots of strains that do that. Goto a seed site "one that has a larger list so you can get a better idea of what you would want" and read over there strain descriptions and pick one that suites your growing conditions. There are also methods you can use to help keep your plants short and bushy..

Read around more you will find what you need here.