Very cute, short, wholesome game that reminds me of the example Twine game Space Frog! Sometimes keeping it short and sweet is ok and I think it works here but more could be added if you wish.
Viability: Definitly has a start, middle, and end!
Presentation: Very vivid descriptions, could perhaps benefit from illustrations if u have the time.
Theme: Love the story! Love the theme! Very wholesome. Would play this if I need a feel-good game.
Engagement: I felt invested in my choices, but perhaps some more options to make the griffin feel better when you make a bad choice, even if for rp or personal satisfaction purposes? When I accidentally spilt the water and made their affliction worse I felt so so bad- like when you accidentially step on your pets foot and have to hug them and apologize for an hour straight.
Overall: Very fun. Would name my griffin Peter.