Sketch challenges are fun for me because I tend to get stuck doing the same few designs for everything. I like this one for its strong geometric shapes.
I used the new Nailed It stamp set, Build It framelits and Urban Underground DSP from the Urban Underground Suite in the Occasions catalog. The shapes are set on a layer of Soft Suede cardstock on a Sahara Sand cardbase.
Make sure you visit SSINKspiration to see what other design team members created.