This made me laugh! Very good timing to catch them "in the act" and good crisp focus. A nice simple presentation (which is good here at DPC). You'll get better scores if you use the full size allowed for challenges - the picture can be 640 pixels on the longest side - horizontally in this case. There's a very good tutorial you can read to help you with resizing pictures for challenge submissions: resizing for DPC challenges.
Keep shooting and feel free to PM me if you have any questions!
This made me laugh once I saw the detail..lol. Looks like your focus was dead on as well - it really isolates the little buggers. Besides being funny, it's perfect that the background is blurred and dull and the rope a bright yellow, so that your tiny subjects stand out more. Good work!