are there any well-animated romantic 日本动漫 out?

Well, if 你 don't specify as to what shows 你 seen, it's somewhat difficult to know we're not posting one you've seen. I'll just recommend Toradora...

i think Kimi ni Todoke is really good :3

Suzuka is a romantic comedy shonen anime/manga. Its about a guy whose romantic interest is on the track team. It's one of the few romance shows for guys that doesn't devolve into a harem. Some other ones I can think of that actually involve a steady relationship are Ah! My Goddess, Ai Yori Aoshi, and Psychic Academy.

Clannad

try sukitte ii na yo and tonari no kaibustu-kun!! they're both really good and have cute art styles; the 动画片 for both is pretty good.

Acchi Kocchi is a really good one that just came out this 年 :3

你 need to watch Sukitte Ii Na Yo. Right now. It's amazing and so is the animation.