glad you like this design. per request here it is in black and grey tones. there are multiple versions you can do depending on the application requirements. I am happy to try any other versions you might want to see.
Another look at this is to solve the round peg in the square hole and visa versa that figuratively your industry works on!
I cannot do the color adjustment until tomorrow when I am at my office - but happy to do that and can make those type changes while the contest is in judging mode.
IF you want to pick specific colors you can suggest PMS (pantone matching) colors - you can go to this website to see the full color range: http://www.cal-print.com/InkColorChart.htm
I will suggest colors based on pms colors ranging from a deep red to a warm brown based on your original request. Let me know if you want different color options.