This is my final photo of my toy room
Top view
Front view
Through this exercise of creating the toyroom, i've learned that maya actually allow its users to import scenes and combining the things in the scenes into one. This helps to save people time as it does not require much time on importing.
And i've research on how we can actually import the scenes altogether from the web.
credits: http://autodesk-maya.wonderhowto.com/how-to/import-object-from-one-scene-another-maya-7-379378/
I've also researched about importing and exporting with crosswalk for MAYA, the site describe on the steps we need to do in order to import and export with crosswalk.
You can read more about the importation and exportation with crosswalk for MAYA here.