too much of a good thing

I would say from the looks of this Koala he has had
" too much of a good thing"

"What's for breakfast? Gum Leaves!
"What's for lunch? Gum Leaves!
"What's for Dinner? Gum Leaves!

Yep definitely too much of a good thing!
Yanchep Park

Shakespeare Phrase: chantler63 challenge