Hi im very interested in this contest and i have several questions about style:
1. Are you looking for a detailed illustration of each character (nice line art, colours, shading,comic or anime style, etc) or just some graphic style (less complicated, flat colours,monochromatic, silhouettes, carton style, kids style, etc)
2. here are some links that describes better what im talking about
comic style monochromatic
http://www.thickets.net/toren/wp-content/uploads/2010/08/zombie-jesus-final-300-dpi.png
comic style coloured simple shading
http://4.bp.blogspot.com/-mwV9ge7szSk/UCKBr1IM2hI/AAAAAAAAAnA/7CMmAlO0_OM/s1600/3.jpg
comic style detailed
http://designyoutrust.com/wp-content/uploads/2011/03/co1a.jpg
anime style cell shaded
http://fc06.deviantart.net/fs70/i/2012/146/0/d/crimson_valkyrie___anime_style_by_crimsonvlkyrie-d516jbx.jpg
vector art flat colours
http://images.all-free-download.com/images/graphiclarge/steve_lambert_gate_hands_clip_art_25372.jpg
vector art cartoon style
http://me.damasgate.com/PSD/users/3d.Cartoon.eps-3.jpg
vector art monochromatic
http://th02.deviantart.net/fs71/PRE/f/2011/078/2/f/fatal_girl_design_by_kstarratsk-d3c0ivd.jpg
vector art silhouettes
http://congresoacocex.com/wp-content/uploads/2014/01/1.jpg

If you have other example of style please let me know, i personally suggest if you're going to use the images on posters o tshirts via printed and based on the brief that have to look "badass" ,some comic shaded or anime shaded style will be striking and eye-catching much more than the other styles.
Hope to hear from you soon

Hello,

pls. explain more details about these project.

cheers!
glider