Hi Lizzie - here is some help - we can't have you down a big deep dark hole!
You are right: 2 sphere's rolling and two metal boxes in the puddle.
Right-hand boulder up one and take coin on ice.
Go back round and push lower sphere right and then up (against top wall - the other boulder won't have moved).
Go back round to the left side and walk over 3-way tile and push right metal box down and left to above puddle.
Go back round over fake tile and push the metal box in the puddle.
Now push other metal box to the right wall and down over the ice and into the water.
Walk on fake tile for the last time and push sphere down (see screenshot) - the other sphere will also come down and Bob's yer uncle (or is he your Valentine

)
Hope that helps x
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