Exterior: What to do next?

The things I currently have on my 2003 Celica GT

Red painted calipers
TRD Plate
18'' Helo Tease 825 Rims
Custom Truck Audio: Dual 10'' Powerplants with Fusion AMP with Red Custom fit Box
Alpine Deck
TRD Exhaust with TRD Action package

Linked Image

Linked Image

Linked Image

With this in mind, what would be the next step in customization?