Greetings from your own critique club. Sorry, I was off the hook for a while.
First Impression Like the idea, don't like the execution.
Composition: Composition is alright.
Subject: Fits the challenge.
Technical (Colour and light): Don't think the border really goes with the picture. The lights on the lemon is blown out. When I look at the picture, my eyes first goes on the bright yellow border and then goes to the blown out area on the lemon.
Improvement: Border and blown out as mentioned above.
Summary: Not one of your great shot technically.
First impression is honestly: WTH? What does this have to do with ninjas? The top of the lemon is way blown out, as well as the upper edge of the lenscap, and the DOF is not working for the lenscap since parts of it are out of focus, and the parts that are in focus aren't sharp enough.
CTCP2 Gunnsi First impression: To much light on the (is it a) "lemon" !!!
Good focus on the bottom of the Lenscap but IMO a bit narrow focus making the top of the lenscap OOF.
The frame is nice, works well with the (is it a) lemon.
What can be better?
Dim the lights on the (is it a) lemon.
Fix the DOF.
I had to look at this for a few seconds to figure out what it was. The lighting and focus on the lenscap is good, but it's a bit bright on the lemon (if that's what it is), which makes it sort of hard to "see". I like the idea, though. Very clever. And the colors work well together.
First Impression: Intelligent idea, very original for the challenge.
Composition: A bit strange, too centered and cropped too tight.
Subject: Good idea for the challenge.
Technical: Focus and use of the DOF is very good. Light on the lemon is too harsh, almost hurts the eyes.
Improvement: Take off the center the logo of Canon, not so strong light on the lemmon.
Summary: Good idea. Keep shooting.
Technicals: Well the foreground was exposed well but that background has a lot to be desired but you know that already.
Subject/composition: To sell the idea that this lens cap is indeed a ninja it would have been better if you had some of the lemon/pear remains on the lenscap. Might have made this more gory but hey it's a ninja and it just sliced through that whole thing. :P Btw, I like how you composed this. Lots of balance and in your face action.
Suggestions for Improvement: Try and not make it a last minute thing?