For myself, I imagine a vast meadow, drenched in warmth and glorious sunlight. Bordered by woodland filled with ancient trees, shaped by their age and character, and a mountainous or hilly region where a river runs down from a vast waterfall to a large pool. In the distances surrounding, there are cottages and small buildings dotted randomly, each place in the style or manner of the person who abides there. Animals of all sorts roam free and there is no threat or danger from, or towards any of the inhabitants. Everyone meets together as and when they choose, food and drinks are simply "there" whatever is desired. Every place that is in view can be reached in no time, no effort is required. Whatever pastime you wish can be practised, whatever that might be in an afterlife.
Yes it is all fluffy and nice, but it is supposed to be isn't it?
Pretty much sums it up for me! I would add far beyond the mountainous, hilly region would be a beautiful beach with white sands and crystal clear blue waters with playful dolphins leaping joyfully in the distance. I prefer fluffy and nice.