All artists have an art style (because logic), but every art style has an story behind (were decisions, personality, objectives and many other things play an important role), so the question is, How did you get your actual art style or art styles, and have you had others before that one?
In my case, I used to draw with black lineart and solid colors, and later introduced gradients for lighting and shading. I still use that art style in non digital drawings, as I remark with pen the borders, then color everything (I'll let some examples below). However, in digital, my art style shifted, originally to art without borders, and used solid shadows and solid illumination. The illumination disappeared for a while and shadows too eventually, as I wanted an art style easy to do 'cause I was lazy (During these times I drawed with a mouse).
However, I found out when things of similar colors overlapped, they mesh together (because logic again). Sorted that by re-adding shades, but only using them to separate two objects of similar colors. That was my path for a time until it became easier for me to draw anything, and eventually re-added lighting and gradients for drawings that needed it. From there, I've been deliberately switching those parts, and maintaining the solid coloring and separative shading (as you will see in my profile's art).