What do you think? Is this not a super-cute coat? It has more than a tent silhouette - it has beautiful bias flared swing fullness.
It reminds me of the coats of the 1940s (and a bit in the early 1950s). In that era coats with swing fullness (especially in the back) were enormously popular. Adult or child, these coats were definitely tailored, and had delicious back fullness and flared drape. Here are a few examples from patterns currently in my shop: