First of all, the movie is not Nausicäa or Time Masters (1982). Although it is kinda similar.
What I remember (memory is 17 years old):
I saw this movie on Free-TV or VHS in maybe 2002. The animation style I have in memory is Anime, realistic, kind of like in "Time Masters" but more colorful and it looked more modern.
There's a group of people on a planet. They are searching for something. On the planet are different plants and insects. While the group is wandering the planet they are being attacked by the insects. I remember bee-like insects. Very big bees kinda. But bigger and more colorful like in Time Masters. Also after this happens there is a man and a woman in a swimming pool taking a bath together. (Yes, this sounds just like Time Masters but it isn't!). The pool is modern looking and under water they are kissing.