Don't think firemaking should be its own skill, it was kinda pointless in RS lol
Only need two types of skills, gathering (woodcutting/mining/fishing) and crafting (fletching?/smithing/cooking) and thats good enough really, maybe more skills down the line but thats plenty for now.
Not entirely related to the OP but referring back to the skills, I think the max level needs to be looked at, the fact its 99 has obvious ties to a game we all know, there needs to be some seperation (100?)