Pacific cove is looking great! The exterior is a tad plain but the interior decorating is look very well done. You really used objects to the fullest.
Some advice for the exterior: Modern homes tend to focus on different textures and shapes that contrast in an interesting way.
Here is an example: http://bestinspired.com/wp-content/uploads/2015/05/modern-house-designs-.jpg
You can get away with some weird stuff with moderns, doesn't have to just be solid white cube with big windows. Notice the structure of solid concrete how it feels likes a separate entity. The house feels like a few different rectangular prisms merged into each other. The wooden slats create great textures to break up the big glass windows. This is just one example of how you can approach a modern home. Keep up the great work, hope this helps!