Using my previous experience on gild1_2, I decided to create an another theme.

Disadvantages of gild1_2 :

• can be slow to refresh the page.
• no navigation in thumbnails part (not possible to go to another page of thumbnails, I had to use the album page).
  What I wanted :
• remove the album page,
• create an image page with more thumbnails (with pagination) and main picture,
• keep the refresh of main picture and comments in ajax (maybe it will be too slow, but I need to try).
  Now you can try the beta version.