...your own oblivion realm...what would it be like? who would live there?...how would you be worshiped? what would be your dremora name? what would your shrines look like? ...what are your trait's abilities, blessings and curses and what are you the dremora lord of?

The Citadel.
Anyone.
Shrine of Garrus Vakarian.
Traits and abilities- Stuff.
Blessings- Better Calibrating.
Curses-
Daedric Prince of Calibrations.

I'd just be good ol' Herma-Mora.

http://www.imperial-library.info/content/apocrypha-apocrypha

Curses should have been eternally long elevator rides with poetry reciting Hanar

Well.... My realm, I can change it.

M'aiq already has his own realm, known as the Shivering Skoorolls. The realm is protected by Sweet Trolls and Skooma Serpents.

M'aiq is the 18th Daedric Prince and his sphere is skooma and sweetrolls. His shrine, of course, has a statue of himself holding a golden skooma bottle.

Oblivion Realm: It'd probably by a recreation of the Nirn, only more mystical and more beautiful. Towers reaching beyond the sky.

Inhabitants: Animals only. Dragon, Spriggans, Mudcrabs, etc.

Shrine: A large, ethreal tree in the center of the realm. Similar to a World-Tree.

Dremora Name: Gilorn.

Traits/Abilities: Pure energy.

Blessing: Cure disease. Remove impure traits. Impervious to elemental attacks.

Curse: Energy is slowly drained away until you are nothing but a mere shade of your former self.

Daedric Prince: Daedric Prince of Purity.

Edit: I have too much time on my hands to come up with this... That's bad.

It would be similar to Sovngarde except more fighting to prove your strength and worth. There would be a grand arena that the warriors would fight in for my favor, the greatest warriors would have a place beside me at my table and the weakest warrior would have to scrounge for scraps as weakness isn't welcome in my realm. Paradise awaits the strong, pain awaits the weak.