How can I fix the topology of this mushroom cap

Second try. My first post got removed, so I hope this is enough info:

I´ve been working on this mushroom for a uni project of mine, using a cylinder as base following a YouTube tutorial, until I realised that - naturally - the caps were n-gons.
I´ve tried to grid-fill them, while using LoopTools, but I´m not quite happy with the result.
Is there any approach that might get me better results?