Writing is a Personality-Based Skill

For skills (and hobbies, etc) there are two types: Ones that rely on the base of the skill, and the other on someone's personality.

Steve is a lumberjack.

He chops wood with his bare hands.

Steve has a very warm personality with a hint of self-depreciating humor in the form of sarcasm. Now, can he chop wood warmly? Or sarcastically? No. You can't apply personality to the skill of lumberjacking.

Ellen is a hopeless romantic with a love of cowboys and Irish Wolfhounds.

Who doesn't love dogs that can eat entire sheep?

Ellen's personality is going to factor into her writing in big ways. Even if she's not writing romance books she'll be writing, say, murder mysteries with elements of romance and maybe modern cowboys who are the love interests of plucky heroines who own massive Irish Wolfhounds.

There are more obscure skills, but the fluffy ones (painting, music, arts and crafts) are going to be personality-based whereas industrial (plumbing, electrician) aren't generally. There are some blurred lines (carpentry, clothing) but you should get the picture.

Why bring this up? Because along with personality affecting your writing, it will also affect your writing habits, which I will bring up next. Consider this the introductory post to the upcoming one.