Comments/ Suggestions on new studio in Brazil

Hi, I am new to the Forum and I would like to share with you a Studio that I started to design. I would like to here some comments/suggestions. This Studio will be constructed in Brazil. I am particularly interested in Dimensions and Shapes for the rooms, specially the drums room. Height, angles, etc. For all rooms Thanks, Sammy

Here's the floor plan for those unable to read DXF files. cheers john

Thanks John. Here are some more diagrams. These Diagrams have more detail on the different rooms. All measurements are in meters.