Thank you
As you wish, Master - keep your vacation as long as you can.
But there always will be back to work - the battle for Atlantic has never ended !
For IXD2 i have only one suggestion/impression at now...
U-181 commanded by Wolfgang Luth - he took the longest patrol in WWII - about half year!! I can search better photo but look at his u-boot:

First u-boot under his command was U-9 :

Maybe this white color on turm is a sunlight and maybe not - but that painted ''DUCK'' [White turm and rest hull in darker colour] looks very interesting. Don't you think?
Of course - cross can be added by choice emblem but originally this black cross was maded from steel by crew.
Next fine camo scheme i found at U-37 - type IX A.

The camos seems different but i'm sure that you can made the best choice.
U-25 - one of first u-boats in WWII - unfamous hulk ravaged by many malfunctions due to his bad construction. ...but his camo looks very impressive:

...and especially his turm:

Some skilled skinner can make super rework from this camo for uboot...VIIB?
Next fine camo scheme comes from...i don't know - look - pictures from two sources: One tells - U-81

...and the other - U-565

Maybe someone can help me with this puzzle.
...to be continued