Lets all attack Manchild for giving legitimate criticism -- a perfect example of blockland's unyielding need to invoke stagnation of building skills.
He's entirely correct. OP has not build a modern house. He has built a busy facade. Throw a bunch of boxes together, throw in some red ones, and then haphazardly throw in a curved window, and boom, you've got what Hair has built. I'm sorry, but the brickwork is not good and this does not resemble a modern house.
Modern houses have proportion, consistency, symmetry, style and contour. Nothing in the OP is consistent or proportional, you've stitched together about 5 different styles, there's no symmetry, there's no flow. Your doorway doesn't even line up. Your tiles are incorrectly rotated / placed.
If you want my advice for building a modern house: build with a grid in mind. Place the boxes in a way that is symmetrical and proportional. Don't just make it up as you go. You're going to have an extremely difficult time putting a detailed interior as it looks right now. The whole red pillar curved thing is cool but don't just jam your windows and walls into the side of it.
It's okay for an art piece, as for a modern house, it needs some serious renovating.