This thread in the Galaxy II forum has all the resources you need to make a reasonable TouchWiz based Galaxy III lookalike on your DZ/G2. Have a look at the attached images.
TouchWiz is a light and simple launcher. Overall I am impressed with the speed and smoothness. I am running it over the latest build of Flinny's CM10.1 and it is smoother and cleaner than either the built in Trebuchet or Nova. It is well worth deleting Trebuchet with Rom Toolbox (or equivalent) otherwise it tends to run in the background and hog resources. Should work with any AOSP/CM ICS/JB. Not sure what it would do to a Sense rom? It is less of a memory hog than most launchers. Once booted and settled down, I get about 200meg of user ram
Enjoy!
TouchWiz is a light and simple launcher. Overall I am impressed with the speed and smoothness. I am running it over the latest build of Flinny's CM10.1 and it is smoother and cleaner than either the built in Trebuchet or Nova. It is well worth deleting Trebuchet with Rom Toolbox (or equivalent) otherwise it tends to run in the background and hog resources. Should work with any AOSP/CM ICS/JB. Not sure what it would do to a Sense rom? It is less of a memory hog than most launchers. Once booted and settled down, I get about 200meg of user ram
Enjoy!