I really like it so far, I actually had an idea that was very very similar concept but mine would have also included the ability to journal about your travels/destinations and journal entries would be tagged/associated with different albums, places etc.
By adding in journaling you provide users the ability to tell more of a story and remembering the story is one of the main reasons someone would use this service over FB or flickr. Like antoinec said, you should either do away with the small thumbnails in between the large photos or if you adopted the journaling concept, have a two options for that intermediate view, See Photos or See Journal entries (possibly with photos embedded). Best of luck!
By adding in journaling you provide users the ability to tell more of a story and remembering the story is one of the main reasons someone would use this service over FB or flickr. Like antoinec said, you should either do away with the small thumbnails in between the large photos or if you adopted the journaling concept, have a two options for that intermediate view, See Photos or See Journal entries (possibly with photos embedded). Best of luck!