Cajon Rail LLC is a company specializing in rail software. Cajon (pronounced "Ka-hone") means a box-like valley or mountain pass which could be incorporated into the design. I need a simple, clean, professional, elegant logo in up to four colors with the words Cajon Rail LLC as part of the design. The design should be suitable as letterheads, as a website logo, and on business cards. I'd like you to produce rough sketches of 3-5 designs, of which I'll pick 1-2 and ask you to firm up the design for those. If you bid, PLEASE include a website link so I can view designs you've done previously (portfolio). I must be able to verify those designs are yours.