My mockup rejected. Please help!

Please help me improve my design. This is a first time that I upload something, I thought it was good, but… I would like to improve but I’ve got this message, with practically no answer about what’s wrong.

“Unfortunately your submission Realistic Logo Mock – Up Concrete Pack isn’t quite ready for GraphicRiver and requires significant improvements and changes before it can be resubmitted and reconsidered.

Additionally, we have some extra feedback for you:

The overall quality of your submission does not meet our aesthetic and technical requirements and will need to be improved before being resubmitted. Unfortunately we’re not able to provide more specific feedback for your submission at this time.

Please consider taking some time to familiarise yourself with our current library and quality levels of popular items before resubmitting.”

<http://imageshack.us/photo/my-images/89/slozeno.jpg/>

Thanks!

Moved to Item Discussion.

It’s important when building mock-up tools, that the end results look as real as possible.

I would drastically improve the lighting on the elements and also work on the textures. Take a look at some real examples of these, and try to mimic them as close as possible.

Im not a pro but as I sees, You need to consider the perspective transformations of the second and third items as it seems some imbalanced alignments, Improve the textures, and detailings as well. Lightings also need improvements

Thank you MythicThemes and anchor_point_heshan for your reply. I will try to correct what you’ve mentioned. I will post it here first to see what you guys think.

Try to make better presentation, use different logos for each effect or something