please give feedback my submission :)

Hi There

I just added a submission with three variations, and would love some feedback on it!
Just let me know if i'm on the right track or not, or if there's any changes you'd like to see me make.

Thanks very much!
Ross

This is stock image https://thumb1.shutterstock.com/display_pic_with_logo/3758843/499712827/stock-vector-doberman-vector-clip-art-logotype-icon-499712827.jpg