Is this ab x-reacting with Pancreatic peptide?

This, from Wikipedia:

Peptide YY is related to the pancreatic peptide family by having 18 of its 36 amino acids located in the same positions as   pancreatic peptide

Is this ab x-reacting with Pancreatic peptide?

Thus is not specific for PYY?

L cells  ( enteroendocrine cells ) are positive.

Dermo-epidermal junction.

Same comments as in goat result.

Slight cytoplasmic positivity: either needs to be further diluted( 1/2K for this image) or, specificity is compromised.