He's so beautiful! I love how he seems to be posing for the shot with that inquisitive head tilt in some of the pics! The only ekkies I've seen with so much yellow at such a young age are Liana's (Kinny). And if I recall correctly, she was also offering supplements of some sort.
A word of caution. Unless you are receiving expert advice on the dosages you should be giving your eclectus, supplements can be a risky proposition. An amount that would be good for another kind of parrot of similar size would likely be an overdose for an ekkie. This is due to the extended length of their GI tracts, which allows them to extract far more by way of nutrition from their food than other parrots. So since they are already taking in an elevated level of nutrition, supplements that have been designed without this longer GI tract in mind can have deleterious affects... such as the toe-tapping and wing flipping Wendy mentioned earlier.
And keep in mind, an overdose won't necessarily present itself in the condition of your ekkies plumage. Some with pristine feathering have suddenly shown the familiar symptoms of toe tapping and wing flipping.
So I personally shy away from supplements, and will continue to do so unless specifically directed otherwise by an avian vet who knows ekkies. Not too many avian vets are skillful with ekkies, unfortunately.
And if using pellets, which I no longer do, I'd keep the numbers VERY small. Maybe 10 in a day, five with breakfast and five with dinner. But I believe that, as long as your ekkie is receiving a varied diet of fruits, veggies, grains and legumes, the pellets wouldn't be necessary, either.