Pixiv description:

Two NPCs for the PMD-E group. Barkely the Arcanine who rescuers avalanche victims, and Charlie the Smoochum who wakes them up.

Deviantart description:

Charlie the Smoochum - she accompanies Barkley in all of his rescue trips around Snowy Village. She's the more serious of the two, preferring to get the job done as quickly as possible.

Barkley the Arcanine - Playful and honest, Barkley loves helping out Pokemon that falter near Snowy Village. He frequently makes runs, checking for downed Pokemon. His fiery breath helps to warm them up!

Deviantart image title:

Snowy Rescue Duo

That dog was never any help!
All he did was make a martini in front of the frozen skier and leave.

A male Smoochum? Does that constitute a genderswap tag?

According to the Deviantart description (that I added now by editing my first post), Charlie is female, despite her name.

Changed tags accordingly.