It is a beautiful map.
Believe it or not, the photo-realistic maps to me are 'O-kay', but certainly not the greatest. Maybe I am just too old (41 next year), and have played D&D since the days of super simple maps. As a result dungeon maps I like less photo realistic, maybe a little cartoony.
But, your map is beautiful in its simplicity. It conveys exactly enough information that it needs to. Is there a door? Yes, here it is. IS there furniture or something the PCs can use in a fight, jump u on, or over, or underneath? Yep, over there.