Wonderful creativity. This is Koh Phi phi in Thailand and your clever blending of the statue of Liberty with Thailand's iconic rock is truly out of the ordinary.

You need this: https://www.photoshopessentials.com/photo-effects/cast-shadow/

It still works fine for me. Try this and type in cast shadows in the search bar. https://www.photoshopessentials.com/
I'm using Chrome.

The bears' ground shadow is better. Maybe tone the brightness of those bears' highlights down some, they are in the shade of the the buildings.
Check the girl with the teddy bear's shadow, the opacity in particular. Look at the bicycle shadows for a reference. The girl's shadow looks too dark, maybe a tad of Gaussian blur and a slight opacity reduction. Hope this helps.

Oh, for the sky in background, a soft blur brush will help remove some of the speckling.

Chickens do swim you know.. it's just really pathetic because they don't have web feet (they mainly swim to cool off)... and oh what a smell... anywhoo... that's your animal lesson for today children.. now back to your regularly scheduled program, where we will see Emma Jean Backstop make a 12 bean salad, using only three types of beans and magic markers

Please post your sources

Made me smile today. Well done.