Honeythorn
Sugar coating and nicely nicely? I don't think so
I'm pretty sure fish aren't all that familiar with base human anatomy and will more than likely not realise it's a model of a human skull. There's nothing scary about skulls. You have one keeping your brain in after all, it's just got a bit of skin and muscle over it.
is 25 fish too unrealistic over a staggered period. 25 in total will be the whole amount. Mostly guppies and tetras. i think there might be around 6-8 mollies / platys a mixture. depends when i get to the LFS!