What program are you using? Just photoshop with a tablet or something? Or are you doing a full 3d render in 3dsmax or something?
Scott's looks like photoshop and paint tools, and e92's look like a full 3d render.
/// 2008 e92 335i 6sp JB/CR
| COBB AP | AR DP's | AFE DCI | FMIC | BMS Cowl Filters | Stett CP | Forge DV's | Sig photo by jMeas!