#7 and #8 Great work! I like your concept, also appeals to me because of the subtleness of the image, shows also clean and green image which I am striving to acheive. #13 and 14 have potential. I am not too keen on images with horizontal lines of a traditional Venetian blind. I would like to see more of leaning towards the enviromentally concious green aspect of the company in the logo.