it's low fantasy at least for an earlier release. not that i'm opposed to higher fantasy but i think i have enough work on my hands without inventing fantastic creatures. religion and myth might play a part as more than crowd control, though.
As for your suggested resources, i'm abstracting out the most basic things. i did spoke of grain and fish, but i think those will be grouped simply as basic food
what i'm asking for are trade goods that would provide a few bonuses, even if just to humour the most picky nobles or provide a slight boost to happiness in cities, but would otherwise be necessary. things like clay, wood, stone, textiles, etc. won't be represented as cities are assumed to have access to these by default, or equivalent alternatives.
basic resources will be money, food, population, and reputation\glory\respect, something like that that would boost morale and diplomacy