Greetings @armacontreras !
Welcome to the Unreal Engine community! 
Your tsubo-niwa is really peaceful and serene. Sakura are very beautiful trees. You’ve done an amazing job creating the dragon sculpture and texturing it to fit perfectly in your scene!
Thank you so much for sharing the video from Core Kyoto. I never knew what these small gardens were called. I learned something new! This is a great way to stay connected to nature if you live in a “concrete jungle”. Have you ever seen a tsubo-niwa in person?