7.5/10: The left side of the vignette is a bit underdone (except for the well-done lawn mower), and its right side's landscaping is not so good. a landscpaing similar to Flare's underwater creations ( http://www.mocpages.com/moc.php/245174 ) would be nice here (without the green parts). The wheel is a great addition. What is that brick-built red thing (on the fence)?
I love that watering can design! This is a clever little vignette too. I think you could have left out the last shot though. Sometimes its better to leave your audience hanging. Plus, that first shot has some great action, you know what's coming next!