Marker practice - limited color palette challenge

I was totally lost in my own little world over the weekend, messing around with some markers. My coworker gave me a 6-pack of Blick markers that weren't his cup of tea. Red, yellow, green, blue, purple, and black. I challenged myself to color in some practice drawings using this limited palette. I am quite pleased with the result! 

You can't depend on dark strong colors for complete coverage, but colored pencils are more than enough to fill in the blanks. Being limited to such color restrictions was a great creative exercise and I have emerged from it as a stronger, more confident artist.

I initially planned to use this drawing for painting practice, but opted for a different challenge last-minute: color this fruit bowl using only red, yellow, and blue. I used colored pencils for the more subtle details. I don't want to gloat too much, but this came out way better than I expected. It's amazing how few colors you truly need. 

This cat in the window is by far my favorite of the bunch. I started with yellow, green, and blue. Some black and purple was used as well. All other details were filled in using colored pencil and pen.