Charles go back and check other Bitcoin art collections - if you have design experience you will know that the only thing you need to make any stunning design is the BTC symbol and not the yellow canvas background.
Igebotz is very correct. The yellow canvas background might not fit in some designs, and forcefully inserting it to maintain the bitcoin logo standard might mare the whole design.
@Charles from his own angle is emphasizing the stand alone bitcoin logo. Although, I haven't read about it, which I will do now But when it applies to design, it is dynamic and doesn't follow any static rule.