exterior shot render a modern urban apartment complex with clean geometric lines and details as shown in the sketch outline use smooth concrete for the building surfaces with a light grey color incorporate reflective glass windows with a subtle light blue tint enhance the structure with sleek metal railings and accents in a darker grey or black the background should feature a clear sky transitioning from soft pastel hues at the horizon to a vibrant blue above with ambient sunlight casting gentle shadows for a warm welcoming atmosphere include a neatly landscaped surrounding with green grass and a few scattered trees or shrubs to add a touch of nature
