This was a fun build. It was nice going back to the old sets - I tried to include as many pieces from then as possible. Gotta dash now - sorry for lack of many photos, camera died, then so did internet - hijacking pay as you go interweb. xD
EDIT: Pics are better quality on flickr. Just click the image. MocPages seems to have compressed 'em.
From a first glance and I would be inclined to give it an 8 but I have to take it all into account through observing thoroughly. I'm not overly keen on the use of the yellow Hua and the colour scheme seems a bit odd. The brown is more like patchwork and the red arts seem dotted about randomly. The only things wrong with the proportions are that the abdominal area seems a bit too long and the left elbow looks odd. Also I feel that his fire weapon could've been integrated a bit better. Putting that aside, I do have a soft spot for the old combiners such as Akaima here and he isn't that bad of a redo. I do like the fact that his overal appearence is intimidating aswel, adds to the character. A score of 7 for this one.
Have the 10. I only give one per round, and you just got it. You've revamped him beautifully, and I even like the use of the yellow Hau in place of Gold or Red. I love the use of the original pieces, and you've made the original hectic colours work beautifully here. Maybe would have liked to see a little more tan, but that's my only qualm. The way you snuck claws of Onua in there is shear brilliance. And of course, must end on a MNOLG quote: "Spirit of Valour, hear me! I am Akamai!"