I can agree that the old art design was more consistent....now there are some stuff really good and some not that good, such as trees, animals, etc...generally the new added stuff is better looking than the old one...so I agree that Jorb one day should focus on updating the whole art design at the same level.
But I cannot agree that the old graphic is better than the new one, for obvious reasons the new graphic is way better to me, more details, more colours, effects, 3D, shaders, etc...more stuff over all.
Generally speaking this game is a very beautiful looking game to me. And the new haven even more than the old.