Cleon
Legend
Sounds good to me.
Based on the always neutral dragons listed, skills should include
Appraise, Bluff, Climb, Gather Information, Hide, Jump, Move Silently, Spellcraft, Survival, Swim.
That leaves 6 more. Concentration, Diplomacy, Intimidate, Listen, Sense Motive, Spot?
Let's see, what did we give Pearl the Moon Dragon:
Skills: Appraise +36, Balance +6, Bluff +62, Concentration +63, Diplomacy +74, Disguise +37 (+43 acting), Gather Information +62, Intimidate +68, Jump +37, Knowledge (arcana) +35, Knowledge (history) +35, Knowledge (nature) +17, Knowledge (religion) +35, Knowledge (the planes) +35, Listen +61, Search +61, Sense Motive +61, Spellcraft +65 (+71 decipher scrolls), Spot +61, Survival +61 (+65 aboveground, +65 on other planes), Tumble +51, Use Magic Device +62 (+68 with scrolls)
We can do the same with the Sun Dragon. I don't think he needs full ranks in Climb, Jump or Swim.
Of Pearl's skills that you haven't suggested for Opal, the Knowledges, Tumble and Use Magic Device seem the most useful.
Not bothered about Disguise. Did we give the Moon Dragon that to make it easier to pretend to be another dragon? Seems a bit pointless.
Does Opal really need Intimidate as he has Awesome Presence? We could cut that one too.
Putting it together would make:
Skills: Appraise, Bluff, Climb, Concentration, Diplomacy, Gather Information, Hide,
Twenty two skills could be 10 full-rank skills plus 12 half-rank skills or 13 full-rank skills plus 9 third-rank skills and cost the same SPs as 16 full-rank skills.