i want to emphasize that i only want my original design to be improved not altered in any way please do not add any new shapes buildings materials or other elements here is exactly what i want only enhance realism no added or changed forms buildings or trees keep my original design intact improve materials and textures please enhance the materials i have already chosen making them look more realistic better textures reflections etc better lighting and shadows only improve the lighting and shadows nothing else add trees only add trees that fit my original design no new or creative structures please do not add anything extra or make creative changes i want only realistic improvements on my existing design if you do not follow this i will have to reconsider working with you on this project thank you for your understanding architecture