Hey! ^^
First off, I don't know how much this will help you, but I noticed it helps me a lot.
There are always 4 points I have to negotiate between:
Do I have a one person POV or an all-knowing storyteller? Do I want to dictate everything on my reader or do I want to inspire his fanatsy?
If I have the POV of one character, I try to think what he actually notices. What do I notice about my surroundings when I'm out? How can I mix that with my character's traits?
For the story-teller it's a bit more difficult to choose, there comes in the other question a lot.
On one hand, if I describe everything very detailed there can be readers, who think it's nice, but also those, who think it's boring (like a lot people say about LOTR for example). On the other hand, to inspire someone's fantasy, this person needs a fantasy first, what's somehow more and more rare today.
In the end, I guess, you have to test a lot (try to not think in pages ...) and think about what you'd like to read and who you want to adress. You can't adress everyone with one piece of work.
I for myself love it, to imagine a lot of the world ,about which I'm reading, on my own. It goes so far, that I myself sometimes write one story, but tell three with those little texts.
(Hope I'm understandable so far. English isn't my first language.)
Baba, Madea