I think as long as Oda keeps it simple like a brachiosaurus shooting its head out, a triceratops flying, a shadow making zombies, a string that makes people puppets, shit like this where yeah you can see how someone would imagine it, then sure no problem.
The problem with haki is it’s too vague where it should be and detailed where it shouldn’t. Oda treating it like a skill tree and a basic leveling where “oh you can only have base CoO but that base CoO can be better than Future Sight but future sight is also an advanced form of CoO” is where shit gets dumb.
I've been saying this for quite some time. They are 2 different things. One is the level you have in each category. And another is the skills or different functions that you know how to use for each haki.
For example, character X only knows how to use the basic function of the COA, but he has it at a very high level. So it has a lot of attack power and a lot of defensive power. However, he does not know how to use ryou (internal damage)
We can see this perfectly with Kinemon and the other samurai, who know how to use ryou, and other characters of a much higher level in strength and haki power, do not know how to use it.
The same would happen with the COC and the COO.
But yes, Oda is terrible at explaining and detailing powers. We are still discussing what Zoro's KOH is xD