Thank-you for the feedback!
I agree with your points regarding customisation options, they're a little limited ATM as I'm focusing on getting some more mechanics sorted (specifically a breeding and aging system so your population doesn't remain static).
I'm planning on adding in more options (for hairstyles, separate facial hair, blemishes, and scars) with an update to the character customisation and game startup (adding a main menu, gallery, and story "cutscene"). There's also plans for an in game "Hairdresser" style building where you can edit the appearance of your inhabitants too. While it will start with just hair style changes, you'll be able to unlock hair dye, tattoos, and piercings.
The addition of armour, weapons, and tools is also a great suggestion: I actually have an unfinished armoury building hidden in the game code at the moment. Here you will be able to access a crafting and equipping menu. The equip menu will also be available through the combat map (in-case you need to tweak your warriors gear last second). The planned gear types are: Weapon, Armour, Tool, and Accessory.
The resource generation over time structures I have planned still require you to assign an inhabitant to them, but will provide a more reliable income stream for each resource: Food => Kitchen, Stone => Mason, Wood => Carpenter, Metal => Forge, and Gems => Jeweller. They're all processing buildings, so my plan is to have a trickle if it's just them, but also a bonus if there is also gathering of the same resource going on (calculated base on number of X resource gathered by the end of the day). This should help gathering (and related skills) remain relevant even in late game.
I hadn't thought to add additional skills until you mentioned it, but now I'm considering adding in a set of skills for Cosmetics (hairdresser), Crafting (Armoury), and Processing (Resource generation buildings).
All that said, most of that stuff is some way off being implemented yet! Probably a couple of years work to get it all in based on my current development speed. I should really do up a roadmap...