Very nice rims Greystr, some helpful advice though, and you probably know this, but the 18's won't fill the wheel well as much as that photo shop. Here's a pic of my 18's (yes, i know, it's big, but i thought the more detail the better), with 225/40 18's on, so you can see how it fills the well. 225/45/18's would make for a perfect fit, but are mad expensive tires. the 40's can be had for 150 a pair on ebay.
that photoshop makes them look like 22's and they look tight as hell, but believe me thay arent going to look that good in 18's but still a good style of rim.
trust me, go bigger, you wont be sorry, treps can fit 20's no problem so just spent the extra couple of dollars and get the big ones, you wont be sorry.
www.superbuytires.com like lordtay said the pics your makeing dont look like 18s they look bigger like 20s .. i would say go to a tire shop and see if they will put a 18 on the car to see how they look and then a 20 do any rim to pic a size i was going to do 18s but a guy at a tire shop rolled a 20 out to my car over all the 20 looked better and i thought i wanted 18s till i seen the 20s next to the car ... over all its your car and your money .once you get them there yours to keep (18s look like a o.e.m. size tire ) mine cost 3000. 00 and still running the same tires when i got the 20s and tires still look new .. IT ALL COMES DOWN TO WHAT YOU WANT AND WHAT YOU WANT TO SPEND!!!!!!!