Unable to display images after Drupal Update I recently updated my site to Drupal 7.34 using these instructions -

https://www.youtube.com/watch?v=_uDTyzE47pQ

After update, I am not able to see the images in the site. All I see is the placeholder for image, but not the image itself. I checked and its not a path issue.

This is how it looked before -


And this is how it looks after -


Also notice that the theme has changed. I was using bartik before. Can somebody tell me if I did anything wrong or how to get the images to display? Could this be an issue with image styles?
My guess is you didn't correctly copy sites/all and sites/default/ over during the update or the permissions on the files in those directories aren't correct so Drupal can only "see" core modules and themes.  The data in the database is still working, but any field, content type, or url that requires a module from sites/all probably doesn't work either.