Harrison, lookin real nice... If I may, try ur hand at highlighting some of the buttons/knobs with a small dot of paint... If u run through my build, ull see some pics Paul put up showing the detail of the pit...
Alittle bit of color will go a long way.... U have a magnifying glass???
Also, it looks to me like there are a set of seatbelts on the rear gunners seat.... Maybe try highlighting those with some beige/brownish color to give them some depth....