Rewriting wordpress plugin and theme descriptions

Hello, I need to rewrite description for wordpress themes and plugins.Each description must contain 300 to 350 words. Descriptions must be unique and appealing. here is an example of plugin description to rewrite. https://enviragallery.com/

You can find more info about the plugin from other sites too. So how much is your price for writing one description ? I have lot of descriptions to write. If you write well and have a good offer we can go with you.

Thanks