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Question MOSFET Electronic timer circuit

Pembp

Novice Member
Can anybody advise me if the circuit shown below will function as required.
The external timer supplies a 6 volt signal to the relay coil for between 3 & 9 seconds, this in turn drives the 12 volt motor for the 3 to 9 seconds & it also charges the 220uf capacitor.
At the end of the 3 to 9 seconds, the Piezo buzzer should continue to sound for a further approximate 80 seconds via the N channel MOSFET.
Any help gratefully accepted.
upload_2019-3-11_14-59-12.png
 

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