Artist's commentary
I have drawn Firetanned Cirno ヾ(･ω･)ﾉﾞ
...she might have been cooked a little too much.
The Japanese words for "sunburn", "sun-bake", "suntan" are one and the same. So, "Fire-Burned Cirno" or "Fire-Baked Cirno" would be equally valid. Humorously, the words for "fire" and "sun" are both "hi" but are written with different Kanji, so it's also a pun!