Since it would appear that the Rito worship Valoo, might I suggest perhaps a dragon motif to some of their armor and weapons? An example might be with the Roost Guards and the Sky Knights. A slight modification to the helmet to look slightly more like a dragon head, clawed gauntlets akin to a dragon's hands, etc... to help invoke the draconic worship they partake in. A similar theme could also shown with the Skylords, who were apparently blessed by Valoo himself, by perhaps depicting on their clothing/armor the stylized dragon images seen on Dragon Roost Island murals.