I only used to purchase the photos from photodune.net but I have no idea where is the right place to find artworks like cartoons, abstract arts, mockups, etc. I just woud like to use them in the theme preview for demonstration purpose.
Could someone help pointing me to the right direction?
You can ask someone from Creattica or Behance for permission, and credit them on your item page
Wow, that’s what I’ve been looking for! Thanks @Vlajki.
You can also find info int he credit section of the themes about the source used… if you need images to create previews follow this thread http://themeforest.net/forums/thread/sample-imagesiconsaudio-other-asset-source/117981