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Hi

Could you please check this sentence? Is it OK? Any suggestions are welcome.

No amount of criticism hurts him. I think he has got a rhino skin.

Thanks,

Tom
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Hi,

No amount of criticism hurts him. I think he has got a rhino skin.

More natural is

No amount of criticism hurts him. I think he has the skin of a rhinocerous.

No amount of criticism hurts him. I think he has skin like a rhinocerous.

Clive
Comments  
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I think he has the skin of a rhino. OR I think he has rhino's skin.  

Combing the two sentences would yield: 

No amount of criticism can penetrate his thick layer of rhino skin. 
Hi,

Unfortunately that suggestion is far from natural, and rather repetitious of the idea. Emotion: crying

A rhino's skin is generally known to be thick.

Clive
This is the natural phrase:

I think he has the skin of a rhinoceros.
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