Excellent work, this caught my eye as I was lurking on deviantart. Just like the Uboat lurks just under the surface. Waiting to launch a torpedo at a merchant shi... no just looking for some good art. This stuck out I'm a history buff and I really like WWII history and this fits nicely into the theme. The only thing I was uncertain about was the lack of a banner or pendant. In their absence a Morse lamp flashing would be used to communicate. Otherwise the water is beautiful and the subs are menacing. The only thing I'd be worried about is the originality of the work. This looks very similar to scenes I've seen before in many submarine movies. Again, overall great work!