Yeah most would say (including me) that the Jap style doesnt really work well on a Clio, chunkiness is more in order rather than swooping lines and stuff. Still anyone who puts in the hours to get their Clio different gets my respect.
Dont know if this is your style but it seems like youre willing to experiment so what about this: a little while ago I was thinking of doing a front and rear end respray to tidy up a few bits of dodgy paint so I set about thinking how could I modify the existing bumper to make it different, and perhaps more functional? The basics were that at the rear Id cut a section out of the middle in a Fiesta Zetec kind of style, with a fibreglass diffuser tray coming up out of the spare wheel space, this would be primed and sprayed to look like a one piece custom bumper with an integral diffuser. I always think the Saxo style diffusers look too bolt-on. The front bumper was gonna be in the VW/Audi house style - three big intakes across the bottom of a deep bumper. Not hard to achieve really, chop out the bars across the radiator, plus chop out the foglights and recesses next to them. Mine are chopped so far forward that the mesh sits flat to the front surface of the bumper but it wouldnt be too hard to fibreglass some really deep scoops either side of the rad. On the offside theres not a lot of room to play with but the nearside is a great place for an integral ramscoop connection to feed an airbox or induction kit.