a. straight, linear, clean
b. journaling-focused or story-focused
c. photo-focused
d. artistic
e. eclectic (combining a wide variety of styles)
f. fad experimenting (like to try whatever is new and popular)
g. none of the above (please elaborate)
You may be one or a combination of styles. I, myself, like to think I am c and d, mostly. My layouts are all about the photos and I try to use my artistic streak in every layout.

Edited to add examples of how I see the above styles. Remember, there are more than what is listed!
a.

b.

c.


d.

e.

or

f.

Remember, just because I may have shown your layout, doesn't mean that is your style...it's whatever a majority of your layouts are. If you can't pinpoint it, maybe you are eclectic. LOL Also, there are other layouts that may combine styles and these might be combining styles (if you are thinking one of them fits another style, also, you are probably right!)
The goal here is to break out of your "comfort zone" so to speak and try another style that you wouldn't normally use. Maybe a scraplift would help you in the right direction?
