Well, here is a vw ECE. I had a couple of problems with the ECE back, because the base was 4-door and the car was sepia coupe. But I think that is sufficient for learning and that's what matters.

Base


Chop.



Until next time. By the way I can leave any pair of car brands for the next tune as well.

Sorry but this isn't very good, the only thing I can see from the "base" is the grill and headlights. Everything is very distorted and blurred. The car looks like it has been bent just behind the door because the different angle of "base" and "donor" used. Switching between your chop and the one below you can see that there is still some of the original bonnet and headlight are visible and the rear bumper is very droopy.
Just try and avoid blurriness as much as you can and not to do these type of chops where you just use everything from a donor car that is very similar to the base. I think the best way to advance is just to do simple mods like wheel, background and colour changes.
Keep practicing.

matt_k have right you must work much more man your idea its not bad but its need work