Not all Easter Eggers look the same.
Some Easter Eggers have combs & wattles that are very small, even in males.
Some others have combs & wattles that are normal in size or even extra-big.
Most Easter Eggers have normal-type feathers, while I see yours has frizzled feathers. So if yours is an Easter Egger, he is one of the less-common versions.
Crowing can sound really weird when a cockerel is first learning. It will probably sound more normal after he practices for a while.
He is definitely a cockerel.
I can't tell for sure whether he is an Easter Egger or not.
With a female, it's easy to check: just wait for her to lay eggs, and if the eggs are green or blue she is an Easter Egger. With a male, that obviously does not work
Whether he is actually an Easter Egger may matter if you or someone else chooses to breed him (it affects what color eggs his daughters will lay.) Otherwise, it doesn't really matter.