First of all I find it difficult to make a comment on this picture, since it is obviously meant to be humourous (and it is!), but you did checked the box to get an indepth critique from the Critique Club. I won't say something on the composition and technique, because Heather did this already during the challenge, and I think she was right.
For whatever your reasons were to enter this picture to the challenge, you did a good job on bringing some humour into the game! The idea is nice, but the way you've put, it could have been different so to leave a much bigger expression. You choose to use cut out balloons and stick them on a paper, while instead you could have used the background paper itself to write on, which would have given the photo a more 'comic'look. Also the use of white paper doesn't really leave an impression, maybe a bright colour like yellow or orange would have?
I like the way you've made the textballoons, the "drippy" one saying "ewww" really does the trick making me laugh! You must have a creative mind and a talent for drawing, now take a deep dive into photographing and express your humour in a way all the DPC people will be swept off their feet!!
Does copper get rusty or does it tarnish, are they the same thing? oh well. Anyway, while this is funny, I don't find it particularily interesting as a photograph. We can't see much detail in the pennies at all. You cropped the bottom penny too close, and I'm not really sure of the point of the photo. it could have been drawn better. focus doesn't even seem right on the pennies. Funny, but not the best photo. ~Heather~
There's definitely some creativity working here, but I think it's stretching the rust concept. To critique the actual photo, I see the lower right penny is blurred, and the lighting doesn't seem to be exposing the upper left one well enough. The picture is also lacking in sharpness.
Composition: Subject Placement, Cropping, Background 4
Technical: Focus, Exposure, Lighting, Processing 4
Appeal: Is it Interesting, Motivating, Etc. 3
How well does it meet the challenge: 3
Total Averaged Rating(Rounded) 4
Composition: Subject Placement, Cropping, Background 8
Technical: Focus, Exposure, Lighting, Processing 4
Appeal: Is it Interesting, Motivating, Etc.? 5
How well does it meet the challenge: 4
Total Averaged Rating 5.25 Dick
Coins out of focus, a streatch of the imagination.
Focus: 5
Post-processing: 5
Does it fit the challenge? 3
Composition (Background, Cropping, Framing): 3
Technical (Exposure, lighting): 2
Does it capture my interest? 1
(but it was a nice idea to contrast new and old. The lighting needed to be a bit better as it is hard to see details (but that may be due to the focus).