Alright,i understood something.Her feet will be miles tall when he will shrink right ? İf her feet is several miles tall than that is mountain everest right ?
Still couldnt understand his shrinking size though.İ am wondering he will be speck sized or smaller...Right ?

Author's Response:

Given that the inch between her big toe print and the thong of her sandal is approximately 100 yards from his perspective, he is about a 1/50th of an inch tall or essentially a speck in this sequence.  You'll have to wait to see how small he actually gets. :)