I couldn't make my mind up what to do and I've been thinking of sketching these lot for a while now as they seem quite friendly. Also a bit of a challenge as they never stand still..
I've noticed this post ranks quite well on bing. If any one is interested in sales please contact me. Also I have more cow sketches on this blog: http://rogergtaylor.blogspot.co.uk/2011/09/common-plot-cow-sketches.html