@smurfmier1985 Thanks miranda glad you liked it =)
For the rocks i just followed this tutorial:
https://www.youtube.com/watch?v=D3Lq9SOpzDM
Its an icosphere edited with a subdivision surface (of 5 i think) and a displacement modifier.
Just be aware that the effect of the displacement (as all modifiers) shows only in object mode. So i had to tweak the options of the texture in Edit mode and switch back to object mode to see the result…
For the starry sky it’s just a plane with a particle system on it.
I used the technique that jonathan lampel shows into the “creating grass in blender” course.
In the chapter 2 “modeling with grass” he shows that you can use an object as a particle to create tons of instances of it ^^.
I just took a sphere (with a emission material) and… POOF !

(note: the sphere must be scaled a bit larger to see results with this matcap ^^)