not sure if it's my eyesight but the car looks to tall , maybe its the 19" rims doing it or because its parked up on the pavement, just cant put my finger on it to be honest, wheels are great but maybe arent the best colour or maybe the contrast of the wheel colour /chrome work trim on a blue car are just not working.
Its a personal choice thing mate, others may love it, looks nice to me but not i'm not 100% sure its the best it could be.
I have the same problem in a way, i love certain rims in black and gunmetal/anthracite but its a personal thing really and i'm not 100% they will look right on my black avant either, but, a lot of those colour rims do look good on other black a4's on here etc.....
maybe if the suspension was lowered more they would look better, for me it looks a bit like the suspension has been jacked up when it should be getting lowered with the rim/tyre profile....just my input.
another though , what offset are they, after seeing a bigger image of your a4 , the wheel/tyre combo seem to look lost in the arches mate, allmost as if they are to small in diameter, maybe if they were further out in the arch they would appear to look suited to the wheel apperture if you get my drift.