I think the pencil works for you Jeep_Rubicon.
Keep in mind you can build up multiple layers of color with the pencils. After a few layers (glazes) you will get a rich rich color.
Are you using Prismacolors? You should.
Other than that I like the line work, looks clean, and I like the 3/4 rear perspective.
If you drop a shadow in that front wheel well your front tire will pop a little more.
Keep it up!
-Lemorris