I want to choose a Chinese name for myself, but I really have no idea how to choose a name that won't be weird. Here is some information that might be helpful: I am a female and I chose 范 as my surname. My preference is names that are nature themed, but any other good sounding names will be great too.
There are a lot of common nature-themed given names for females. The listed names are all for females if not further explained.
Tree-related (mostly unisex): 楠，梓，桐，竹
Weather-related：雪 (often 瑞雪)，晴
Water-related (female are often referred by waters): 溪，汀
In choosing a name, my suggested formula is
surname + Characteristic + noun or
surname + noun
The surname can be one similar to your original surname or from a historical or legendary person you admire.
The characteristic is some virtue that you value. Examples for females are，淑，慧，睿，婉，丽，婷，俊
The noun is an object that can represent you, maybe a nature-related object in your case.
范淑芬 fan + kind and gentle + flower 范丽华 fan + beautiful + flower 范晴 fan + good weather 范瑞雪 fan + lucky + snow
This formula can be used when one has almost no idea of what a regular name should be like. However, there are not many limitations to name choosing. If you have a better idea, you can ignore this formula.