The thought did occur to me: when the Teleri got swans to pull their ships along, were the swans flying (as I've shown them) or swimming?
Míriel doesn't appear in this episode because she's just gone into labour. I know, world's longest pregnancy (#93 to #115). I recently re-checked the Annals of Aman in HoME for the chronology, and it's actually this (dates are Valian years since the Two Trees were made):
1133 Noldor and Vanyar arrive in Valinor.
1140 City of Tirion is completed.
1162 Teleri arrive in Valinor and found the city of Alqualondë.
1165 Last of the Vanyar leave Tirion to live in Valinor.
1169 Birth of Finwë and Míriel's son.
(I don't know if anyone noticed, but in last week's episode #113 Míriel's usual ball of white yarn was replaced by a ball of pastel blue yarn.)
Pedantry corner: most of the Vanyar are now living in Valmar with the Valar, but Ingwë himself has built a house on the western slopes of Mount Taniquetil. Indis is living with her brother. I assume they visit Valmar regularly, and perhaps Tirion as well from time to time.
Part 115: Swanhaven
Next time: Part 116: When a child is born
Chibis by tektek.org