I use a similar set of tools that is using
Blender 2.71
Paint shop pro 7.0 - I know it’s old but it’s what I have and I know how to use it!
Terrescultor Pro - Awesome program for building landscape! I can’t recommend program enough!
Zbrush - Just learning bad boy but man is it powerful!
Wish I had tools
Photoshop
Maya and or 3DMax
Motionbuilder