Place the main rainbow above or beside the crib.
Avoid putting small dots and stars where a standing child may repeatedly touch them.
Above a Bed
Center the rainbow over the headboard or place it slightly to one side for an asymmetrical layout.
Keep the sun separate enough to remain visible.
Above a Desk
Position the design high enough that monitors, lamps, and shelves do not cover it.
Keep the work area visually simple.
In a Play Area
Use a larger rainbow above low toy storage or an activity table.
Add only a few dots and clouds around the main design.
Maintain Furniture Clearance
Measure the highest furniture and accessories before installation.
Leave room for larger furniture in the future.
Conclusion
Arrange the rainbow as the main feature, place the sun as a supporting element, and use dots and clouds sparingly. Keep the design visible above cribs, beds, desks, and play furniture.