I prefer the B&W. I think it makes the cat stand out from the background. In the B@W photo the dark black cat is very noticeable in the middle of the light gray grass.
Let the viewer find the cat! I still think you should keep it in color. A little more saturation on the green grass and the job is done. I love cats then I love the picture. Good shot!
Thanks for your comments guys! Funny thing how simple photo started a discussion? I agree with you guys, B&W is most probably better. Color version is my "usual" style but this time I prefer simplicity provided by desaturated colors.
Tim, this time I did not apply any special processing over B&W photo. It's just SP Monochrome2 filter and slightly edited contrast. What I like on B&W version is the infrared-like effect on grass.
I don´t to give up! The picture you took is not that simple, and the discussion about b&w or color neither. I hope you all guys know William Eggleston pictures...anyway I´m copying you the link (http://www.egglestontrust.com) to refresh your memories about one of the most originals photographers of all times. (look forward for his 2009 show about PARIS in the Cartier Foundation).