Xavier, your U-Boat diorama reminds me, rather eerily in fact, of the underwater photographs of the U-Boat sunk off the Danish coast and raised some few years ago. The early images were, for the era, very clear and therefore rather haunting to look at.
Your excellent diorama encaptures that precise sense of "haunting-ness" in an extremely authentic manner. The viewer's 'minds'eye' is almost 'drawn through' the hull, picturing there within the mortal remains of the crew, frozen in time as their lives came to an end.
The amount of effort and talented workmanship you demonstrate in your dioramas have me in awe.
I look forward to viewing your next excellent piece, knowing that it too shall show the audience the skills to which they also can aspire.
Kind and Respectful Regards Xavier, Uyraell.