But in terms of clothing for example, there isn't too much cultural diversity. I'd like to see more unique clothing for the different races. The Khajiit caravan members for example all dress in normal nordic clothing and armor. Bethesda handled other parts very well, for example the Redguard clothes. I'd really love to see more specific clothing for the other races, too, such as the Bosmer or the Dunmer, in order to reflect their cultural identity. Of course, that's only an immersion thing, but since the whole "build your own gameplay" is the main part for a lot of players, more choice would have been cool and would make the races feel way more unique.
You could also expand that on the behaviour of the different races among each other and in interaction with the player, Bethesda introduced that with the Stormcloak's racism towards foreigners. Seeing more conflicts among the races or other interesting ways of interactions depending on the race and cultural background could make the whole expericence more immersive and the whole world more believable.
Fell free to post your opinion on the topic

~Jeezee