Hi, I’ve tried to build a bumpy dune scenery on the background, I’ve extruded some parts of the terrain to top but could not achieve the bumpy look I wanted even after smooth shading…
Do you have any suggestions on how to model a bumpy sandy background? 
It depends on how your mesh is.
But you could try to add a subsurface modifier to the object.
Select the object.
Go to the MODIFIER TAB
Add modifier “subsurface”
and increase divisions.
But it’s part of the lessons, so be patient.
It is a fine model spaceship. Do not worry about the land and bumping it up for now, you will learn other techniques later in the course.
