Also, the "HQ new" part. Maybe explain a bit: "in our brand new headquarters" or "at the newly established HQ."
Need to make sure the call to action is clear: RSVP instructions, maybe a deadline, or how to get there. But if the user didn't specify those, maybe keep it general. kayla kayden please come for thanksgiving hq new
Check for grammar and flow. Read it aloud to ensure it's smooth. Use emojis if appropriate, but since it's a deep post, maybe fewer or none. Alternatively, a few to add warmth. Also, the "HQ new" part