Meteor's two songs combined from original soundtrack as looped menu sound background:
-Zone V
-Anytime Baby

F-14A from VF-142 Ghostriders menu wallpapers (two options)

drop downloaded "base-menu-window" (rename "base-menu-window_alternative" to "base-menu-window" to use second one) file under DCS location (please make backup file just in case):
...\DCSWorld\Mods\aircraft\F14\Skins\ME

for soundtrack drop "MainMenuLoop" (please make backup file) under:
...\DCSWorld\Mods\aircraft\F14\Sounds\EditorMusic