Nice Mate, wish I had V6, (I wish I had an alfa). if you really want to go the whole hogg you can do this.
not to everyones taste but I like it. Must have taken the guy ages to paint the silver lines and he must have a very steady hand. Pic is from the alfa 156 forum but I'm sure they will welcome a 155 owner like yourself. Heres the link if you don't know about it.
That does look good but i suspect he has a bit of time on his hands, looks to me like he's had his cam covers off and sprayed, i just did mine in situe with a paint brush. Also looks like his engine might not have quite covered the 120000 miles before he did it.