I quite like it mate, the background swap for one, is perfect! Great job on that and a good choice on it too. The rims could be improved though in my opinion. Firstly on these ones the colour hue should be adjusted a bit - from quick outlook I'd say they need a bit more yellowish hue adjusted into it (the rims appear slightly to much of a green hue at the moment
Secondly though, I'd like to see you do some more mods on it! This car and bg has potential, so go for it!
If you'd be willing to do these 2 extra mods: I'd be willing to feature it on FB for you. As I know this style is big in Australia for guys with BMW's here and they'd love to see it.
I'd personally like to see some chrome 20" rims put on it, even Vossen's would work so well:
And if you could do a gold paint or a black paint, it would look awesome!