I think any of those things by themselves, the flares, the side pipes, and the rims look a bit crap, but together they form a nice cobra look, especially with those fat tyres in front.
The pipes don't bother me that much; although I'm not a fan of the "collector" look at the front is too fake. Somebody ("back in the day") made some very nice matte finish oval-shaped pipes that would be an improvement. Although IMHO nothing could off-set those oversized flares