Ok, so, finally, I seem to have found a dead end. Next try will be bedrock-ansible. I hope Vagrant virtualized boxes will fix this issue because is a system independant of my own system. To be completely clear, the problem is that: activating Soil plugin cause of lack of css, as is shown here: http://cl.ly/image/1Y0R1n2j3C18. Deactivating Soil, all becomes normal.