This is a good idea, but I think I would have moved the ladder and all the other "stuff" in the background. Straightening the shot out and centering the "tower" in the center window would have worked well. 5
A tower of yogurt containers with an uncluttered background, in focus, good lighting, on a straight plane and well cropped might be somewhat interesting. Yogurt is a good subject matter for this challenge. If you are just starting out, don't get discouraged, there is lot to be learned from this site.
I don't like that you can see the stairs or the boxes on the background, it looks like a rush shot. The stairs atrack more the attention because of the colour.
I like the concept behind this, the red of the yogurt clashes nicely with the whitish background. However, the background itself could been better. If you would have set up a small table against one of the white walls with a white tablecloth on it I think this picture would have been better. The ladder. windy and "cathy" detract from the image quite a bit.
There is no relation between the dairy subject and the background. It would therefore be better to blow the background into oblivion with a wider aperture. Straightening the horizon would be a good start as well.
Using a different background would have made the photo more effective. As it is, my attention is drawn to the work going on behind the tower, instead of to the yogurt itself. Very interesting choosing a different type of yogurt for the very top, though.
what a Dair-ing balance act. Lighting is nice and even. Maybe would have been nicer without the clutter on the counter and the step ladder. Draws focus away from the subject. Perhaps a tighter crop as well? Portrait orientation?
There is too much extraneous background. Compositionally, the yogurt more centered in the window may have drawn the eye more to the tower. The ladder distracts the eye way too much. A simplified image would have gone further with this shot.