Subject of the logo: home pets. We can consider also mascotte-based logos, not directly relevant with cats/dogs/small animals/birds. 
 
All examples attached has a description that indicates why it was chosen. 
We are analyzing the possibility to use both logos in black and white/greyscale or colored. 
 
FOR GREYSCALE LOGOS: see examples. 
 
FOR COLORED LOGOS: Color shades are symply great. Choose colors wisely, also for what they means. Please analyze this infographic choosing colors: http://www.virtualdrive.cc/color-theory.jpeg

zoovon, ZOOVON