Hey there! First of all, congratulations and keep up the great work. You can try some colors combination lessons for future projects and also, what I want to underline is that you have 3 blue-boxes: 1 with the rooms that have the upper corners rounded and the lower ones at 90* ; the 2nd one is also rounded at top and the 3rd one also. Try to let the 1st one like it already is, set the middle one without any rounded corners and the last one from the bottom, set the lower corners rounded. That way it will have continuity. Have fun and keep it up!