The resolution he found was..? 1024×576. You know what standard that is? PAL widescreen resolution (also known as PAL+, http://en.wikipedia.org/wiki/PALplus), which is SD. So, these are SD shots..
As for the foliage, the PS3 version is closer to the lake than the X360 version. The bushes will probably be streamed in if you get closer....
Truth does not fear investigation