My thanks to Ana of Well Appointed Desk for the ink sample.
This is an interesting shade of red-pink ink. It shades well even in my EF Lamy nib. And yes it does reminds me of the watermelon shade of red. it’s a joyful colour that stands out against the paper. It goes from a pale muted pink to a strong red. Pen BBS does interesting colour choices for their inks. They are one to look out for.