very nice mate,but theres a couple of things i think need doing,youve got a lovely enginge bay but theres a couple of bits that really stand out....The crusty looking manifold and turbo.get some exhaust wrap round it..not only will it tidy it up,you recieve benefits too
also theres loads of painted bits which look good then you've got a manky turbo crossover pie and alternator which really stand out.a nice bit of silver paint would cure this
and finally i feel the wheels really dont cut it imo

iether go for some rims that really suit the s1 (rally themed/motorsport themed) or stick the standards back on with a bit of diamondcutting for good measure.
With all this done it'd be like icing on the cake