Is this sentence puncuated correctly?
Growing up in Dallas, Tonya’s otherwise meager, childhood was enriched when she developed a tremendous rapport with her Aunt Helen.

Growing up in Dallas, Tonya’s otherwise meager, childhood was enriched when she developed a tremendous rapport with her Aunt Helen.

I am afraid it's not. This error is called a dangling modifier. The problem is 'childhood' did not grow up in Dallas, Tonya did. (There is also no need for the comma after 'meager'.)

Dangling modifiers are explain in Grammar Monster here