Flyback design check

Hello

i have designed a transformer for flyback converter.

here are my specs, are they ok? do i have to modify something?

- switching frequency : 65KHz

- input voltage: 100V-150V

- 3 outputs:

Output 1 : 20V/1A

Output 2 : 18V/0.1A

Output 3 : 12/1A

-Output power : 35'58W

- Efficiency : 90%

- Max duty Cycle : 30%

- Output diode voltage drop : 0.85V

- Primary inductance : 148'83uH

- Winding: EE25/13/7 Gapped N87

Gap : 0.25mm

- Al value : 250nH

- Current density : 4A/mm2

thanks in advance.

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