The coins look like candy.
I dont hate it, works well with the suits but yeah they look like they were made outta pop rocks or something.
They should have candy that resemble them.

Those look more like Chaos emeralds than power coins.

Power coins look cool, the helmets are gonna have to grow on me.

I suddenly have this urge to eat a Jelly Doughnut.

Red and Pink Ranger's helmet look close to the original, but the others not so much :-/

I don't blame you for that. There is a very edible quality to the coins visually. :lolol
Seriously, they look like pop rocks clutters or like you said doughnuts. :lolol

So, while these aren't THAT bad, they don't really give off a dinosaur look to me (besides Red's), and the Power Coins, while also not THAT bad, are more like just hunks of rocks. Also, I was looking through all of the photos we had gotten, and I noticed that Rita has the Green Power Coin in her staff.

Another thing that I noticed, is that if you put the Black Ranger Helmet and Power Rock under a light like they did there, they look silver.

One more thing. Maybe the Blue, Black, and Yellow Ranger don't have their Dino's visible because of the Green Power Coin, and the Mega Dragonzord combination?

Also, still unrelated, but...

#MakeZyuohCondorAThing