It is a photo app, why the photo thumbnails are so tiny in main screen timeline especially iPad version?
If this is a photo app, focus on showing big photos not the background... If needed inspiration, look to Instagram and other photo apps ;-)
Focus on big photos, photos, photos as the focal point!!!
Browsing tiny photo thumbnails are big turn off.
Dude100x about PicStory - 사진관리 with Dropbox,Picasa,Flickr,Evernote