Envato Market Items Rejected

I am really new to the Envato market. I created an item of PSD to HTML and it’s rejected. I don’t know what is the problem. I have no proper guidelines also. I gave a thumbnail image where my logo was included. I also used my own designed image as preview image and some of my recent projects screenshots for additional preview images. Can it be the reason? and what kind of image can I use as a thumbnail and preview images?

where you get the psd. from envato market? psd is your own approved item?
will be better if you share the demo url to get feedback from the fellow authors.