sketching ideas

I became stuck using 3d modeling tools on the computer so decided to take a break and draw out some ideas on the good old paper.
I wanted to resolve my interior spaces to a higher detail. I like the idea of the walls having spaces where the kids can climb through, under or over. it would also be interesting if the walls evolved into planes (surfaces) which can be used as tables or chairs.

Below is just some doodling of how the library and the kindergarten can come together. i have been struggling to show enough definition between each level as the kindergarten is on such a small scale.


i need to go back modeling now as time is running out. epp.