Character design for industrial Surge Protection Products

We are after developing a premium cartoon character for our industrial range of power protection products. The character needs to portray a professional, intelligent and protective character. The products represent cutting edge technology for expensive hi fi, audio and home theatre systems. The cartoons are designed to send a message to electricians that the products need to be installed to improve system performance in smart home environments. Attached is a copy of a poster done to show the benefits and special features of the products. Some work on a first draft cartoon character has been done but not acheiving the right message or premium quality and function the products represent. We feel the character is bland and like out of a 1920's childrens book which is not what we are trying to acheive. Character and designs will be owned by us on completion of the work. Initailly we would like 3 to 4 cartoons showing 3 different products in different type of environments (i.e. home theatre system, Hi Fi system & say computerised type environment). They need to be supplied in a format that a brochure or print shop can easily use. Copies of cartoon charcter as separate files will be required upon completion too. There will be opportunity for further type work if this becomes successful. Please supply some previous work when placing your bid