really like #2 and think the snakes are a good idea, i also like the plain background all works very well together. #1 doesn't work so well as the whole image seems stretched laterally and it's obvious it's an image of shunt pasted on rather confused background- there's not much link between them. Ducks made me smile though! #3 is nice, i like it how it is "organized clutter" although am not sure about the grey bit / thing at the top, perhaps better without it? #4 is good, i really like the colours and again the snake works well, again it would be much better was the snake not stretched. Motivation for us all to start designing !!