Another option would be to use white acrylic paint. With my monochrome sketch cards, I use white acrylic paint for highlights, general clean-up, and some texturing. I get better results with the paint, as the white gel pen isn't opaque enough (I've gone through a bunch of these. The paint is still superior to it). If you try acrylic paint, I suggest investing in a small liner brush and practicing on sketches, if you're not used to using a brush. As Antlers said, use it sparingly, but when it's used, it usually makes for some nice results.

 

Super Mario Wars - in the style of the Star Wars "Style B" one-sheet poster art - original is 14" x 17":



http://j-dubi.deviantart.com/art/Super-Mario-Wars-356086359

 

That ship is fantastic! The castle has a lot of playful movement, too.

 

Thanks, and thanks for the suggestions TrakNar. I haven't really tried using paint much, its always been dry media...need to do some practice with watercolors and acrylics

 

...

 

Yoda - on 14 x 17 paper stock:



http://j-dubi.deviantart.com/art/Yoda-357004857

 

Your art is very colourful and dynamic!

 

2 more sketch cards, inspired by today's Clone Wars finale, a Tooka and a Jedi Temple Guard:



http://j-dubi.deviantart.com/art/Tooka-357299192



http://j-dubi.deviantart.com/art/Jedi-Temple-Guard-357310916

 

Lando sketch card



http://j-dubi.deviantart.com/art/Lando-Calrissian-358415883

 

Chewbacca and Kit Fisto



DeviantART link



DeviantArt link

 

This is a very special piece I did of Chewie's family–from The Star Wars Holiday Special— which is now one of the art pieces being auctioned off for the Art for Leah auction...

 

Some more sketch cards: Mandalorian Super Commando, Savage Opress, Embo, and Bo Katan.

 

Luminara Unduli, Hondo Ohnaka, Mother Talzin, and Baron Papanoida (The Maker) sketch cards...

 

Two Ahsokas:



The first is for the Weekly Sketch Jam...

 

Hey man, your art looks great! Keep at it dude!

 

Thanks, been busy lately with some other graphic design projects. I'll be getting back into sketch cards soon.