Wasn't a huge fan of the OP art style. I think it clearly has a lot of effort put into it and I respect the creativity and style it has though. I admit it's starting to grow on me just a bit more though with the more I read.
I always liked the style since it mostly has unique characters designs.
And yeah the effort shows and will show even more later.
The art is a bit awkward for like the first 7? 8 volumes?
I think that's where the issue some newer readers have come from.
Because Oda is a master of manga art.
Great background sets, great and unique character designs (well the males mostly), pretty impressive line work and good use of panels most of the time.
And for a weekly too!
Tho to talk about the anime for a sec.
It has the better art.

The very best art.