Question for my Watchers and Readers:

I have tagged all of my stories for this because i need a big group of readers to give me an opinion on something:

I made a promo pic to post with my next comedy story and here it is:

The two images I used to make this pic are located on Equestria Daily and a wallpaper site:
Pinkie Pie: http://www.equestriadaily.com/2012/03/twilight-shows-pinkie-pie-internet.html
Batman: http://coolbackgroundsite.com/wp-content/uploads/2011/02/dark-knight-black-wallpaper.jpg

Here's the question:
Do you think it's okay if, as long as I credit the sources of the images, use this for my story when I post it in about an hour? Is there anything you readers can foresee as an issue here?

Thank you all!

-BGB