It down right horrible. They only have a few armor sets that are good and the rest is just terrible also the colored undersuits really hurt seeing the designs. Black undersuits are so much better. Also why are the should armor so freaking low on the arms its looks bad.
I lost all hope for black undersuits once Chief lost his
But to the matter at hand, some aspects of it I do enjoy like a majority of Forerunner designs LIKE THIS
from Halo 4 or THIS
from Halo 5 ... the newer design is not too different from THIS
(Reach) or THIS
(Halo Wars) or even THIS
(CE); tall, symmetric, sheer, sheen, shiny (when not dark), clean. I also really like the new designs of the Covenant vehicles, namely Spirit, Ghost, & Wraith.
What I don't like is mostly on the UNSC side. 90% of the Spartan armor is ugly. Marines look silly. I do like the new Warthogs and am indifferent to the Pelicans, but in regard to the Warthogs, I don't like them any more or less than the older ones. I really like the H2A look of the weapons, too.
So, I don't know. If I had to choose a side, I'd say classic art style.