As Zero said, the work in progress (WIP) section is a useful tool - you can post up part finished chops as you are working on them, and get feedback to update and improve it before you finish
As for the chop, very cool design - I can imagine an actual rally car like this
Try to focus more on the paint though - it's more or less one shade of the colours and lacks the reflections
If you look at a reference (or even just the original image), you will see that there are big contrasts in the colours you see due to reflections - in some areas the paint looks a very light shade of pink - in others it is a dark red. If you can include this sort of shading in your brushing work it'll make it look much better
Keep it up
