Truck looks pretty good. I've liked those since I saw one done right back in high school. It was just clean, shaved and low with some decent wheels on it. On yours I'd probably scale down the wheels and make some of the lines "sharper" on the cab to make it slightly more realistic. A personal preference color change and Bam, you're good. Your talent is exceptional though so please take my cronstructive criticism as just that. Good work!