These two drawings were among the development sketches for Emperor Velo on Crash Nitro Kart in 2002 that I was most pleased with. I didn't think the designs were right for the character but they topped off a good selection of concepts for Vicarious Visions to choose from. Artistically they were among the best of this group.
For the sketch below I thought I'd include the page information that cataloged the design. Both of these images were on the same page. The date on the drawings is September 30, 2002. Note the abbreviation CTR2. At the time we were calling the project Crash Team Racing 2. Later it was titled Crash Nitro Kart.