OK, after a lot of tips from the forum, and reading A LOT! of Houdini help files, this is my first render with some displacements, some of this was model in Houdini and exported to z brush, and the UV was done in Modo, i haven't done the color maps yet.
is done using micro displacement, some of the geometry is dice up to lvl 6, the displacement height was set to 33.33 (don't know why it change from the suppose 2.2 alpha depth factor bake into the file, so i eye ball it)
i try the render with physical render and was very nice, but the values of the lights change a lot, since i was learning the different from the type of render i leave this one to learn at the end.