I finally finished this homescreen...
It has been a long and tiring work because of the numerous details on which I have focused, 3D effects, shadows and depth .... but overall I am happy with the final result.
Nova Launcher - ZooperPro - MediaUtilities
-Desktop grid size 6rows x 5columns
-No width/height margins
-Top and bottom Zooper widgets size 3rows x 5columns
If you want to use my wallpaper it is included in the link, otherwise you can you use any grey backgroud for a better look.
This homescreen works fine also on a full screen device (I mean no navbar and no status bar) but I suggest you not to move or edit the map otherwise the location will not work properly, unless you know what you are doing...
Credits to @King Rollo
for the bottom icons (2five)
High resolutions pictures to better appreciate the details: