Despite the mix of colours, the general shaping is really good, but it may need a few changes dotted about it.

You should try for one main color, 3 or more colors tend to confuse the eye and thus detracts from the moc, and it's not realistic. (except for camouflage) Go for one primary color and then accent in other colors as needed. Also, study the vehicle, look at as many photos as you can and then build it. Looking at photos will help you determine what pieces you will need to replicate the features of the vehicle. "Think outside of the box" you don't have to put one brick on top of an other brick, try to use special pieces plate, clip, slope etc. Also never under estimate Technic, especially in minifig scale vehicles very, very useful. Lastly don't compere yourself to other builders, you have the potential in you, No one becomes a Mark Kelso over night, so go build. I hope this helps, keep building and honing your skills! ~Marcus

Only the front and a bit back needs work than taaaa-daaaaa!Really nice work!Keep working :P