EDC Sentinel Hub - Subscription

what is the image resolution that we can get in the subscription package and is there any restriction on the region of the earth or of any place we can get such photos.

You will find all information about available data collections here:

The best open-data resolution is 10 meters.
If you need higher resolution, there is additional cost, see pricing in the billing dashboard.
Perhaps also worth watching, commercial data webinar:
https://www.youtube.com/watch?v=wkFQxzxpLAA