I kinda wish that skills weren't added so late in the game but that you'd have access to options earlier.

Fishing should have lousier options either in Meadows or Black Forest at the very least while finding a Merchant would give you the best option. Either a fishing net or fishing spear and have fish be scared of you so that you have to sneak up on them while using a fishing rod the bait would negate that need.

Crossbow could be introduced in swamp or maybe black forest. Perhaps have 1 introduced bridging 2 biomes so black forest + swamp you'd have a bone crossbow requiring bones, drauger entrails, and maybe a trophy. Mountain and Plains could have one requiring obsidian, silver and lox hide and then you'd have the Mistlands one being the next tier.

Blood Magic and Elemental Magic could also use some sort of early rendition of such skills or a way to increase said skill even without eitr. Not sure how. Perhaps call Blood Magic "Blood Binding" and have some sort of healing thing you can use early on and Elemental Magic would be "Elemental Damage" and you could have fire / frost arrows increase that a bit - maybe introduce a lightning arrow.