I love the NorthernUI mod. I think the interface is well done and when coupled with NorthernUI (Oblivion Style)  It is by far my favourite look for Oblivion. It still has that distinctive colour set but has been updated to not look and feel so dated.
The only gripe I had was with the loading screens. They don't take anything from the lovely original games ink sketch style and instead use some rather generic and low resolution screenshots instead.
This mod aims to correct that by completely remaking all 50 load screens from scratch using the same ink sketch style as the originals but incorporating Northern UI (oblivion style)'s colour scheme and UI.

This way you get the best of both worlds in my opinion. I have captured all of these images in game using my Last Seed mod list. Check it out if you haven't already! I have tried to remain as close to the original subjects as I can but some artistic licence has been used where I deemed the original image a tad too boring or too similar to another load screen.
These files simply replace all the screens and disable the vignette fading from Northern UI. Load this mod low down and overwrite anything else with it.
As this was designed for Northern UI I cant say how they will look with other interface mods or the vanilla setup but feel free to try it and report back!