This is the logo that I use to brand for my illustration work. I regularly change the colors, because it makes it keeps it fun, interesting, and up-to-date, yet still recognizable. 
Here is version of the logo, for Spring 2010
I change the colors of the logo according to the fashion season. Most of the use is online and is fairly easy to update. As far as printed versions it only is used on business cards, that are printed in smaller print runs, and are also updated regularly, fairly easily. It is knowingly not something that is usually done with logos, and business cards,.. but sometimes, being different is good.
This next the one for Fall 2012. It follows trend forecasting for the colors of the Fall 2012 Fashion Season.
This is the one from 2013.
This one for Spring 2014.
And, this one is the branding for Spring 2016. She became a brunette.
Greenery was a popular color for 2017, and I liked it a lot. Here is the Spring 2017 version.
And here is the branding for Fall 2017. It uses colors that are similar to the Pantone Color Report, for Fall 2017-2018. You can find colors close to "Shaded Spruce" and "Grenadine", but the main background is in a color similar to "Butterum". I take a bit of creative license with the color palate, but try to keep them somewhat similar to each season's Pantone Color Report, in general.