Lovely indeed!
Maybe you could do a couple more with loads more rust. Initially with burnt out cars, there is lots of black, very little orange and a surprising amount of bare metal. After a few days rust really takes hold of wrecks like these and you get loads of vivid oranges. Any but those completely incinerated often have some small areas of the paintwork left too, so you could add a few more touches of colour.
No criticism intended, just suggestions

15 years putting out car fires in the Fire Service wasn't totally wasted time
