How is the cloud model of the atom different from Bohr's model?
In short the key difference is certainty of locating electrons in the atom.
Bohr's model treats electron energy levels as clearly defined orbital paths around the nucleus ( ike planets orbit the Sun).
The cloud model treats the energy levels as probability clouds, i.e. regions in which electrons are likely to be found. The shapes of the clouds are based on the shapes formed by electrons that are trapped like standing waves.