Well I wanted to share with you guys my process for some backgrounds I just recently finished. Enjoy!
Layout:1 Glacier Lake
Stage:1 Sketch: mostly trying to get composition and perspective correct.
Stage:2 Value Study: Here I was trying to nail the overall tone of the piece and make sure the composition still works with the values now laid in.
Stage:3 Color: For this one I used watercolor and prismacolor to get the details sharper.
Layout:2 The Runaway
Stage:1 Sketch: Again I was trying to find an interesting composition and get the perspective right.
Stage:2 Value Study: Here I am trying to set the mood and the focal point with contrast
Stage:3 Color rendering: For this one I was inspired by the Winnie the Pooh Backgrounds. I used Inked lines with watercolor washes.