Class Weapon Diversity, give more melee / ranged weapon choices for each class.
For the purpose of this suggestion, I’ll refer to the red skill trees as the “fighter class,” the green skill trees as the “rogue class,” and the blue skill trees as the “mage class.”
The rogue class is the only reliable choice to go with at this stage - dexterity benefits weapon damage for both melee and ranged weapons - knives and bows.
If trying to play as a fighter or a mage, you’ll be forced to double spec between two classes to benefit from a ranged weapon as a fighter or a melee weapon as a mage.
My suggestion is to create both melee and ranged options for each class - “options” being weapons that benefit from the class damage stat (strength, dexterity, intelligence).
For fighters, that could be crossbows, which are slower than short or longbows - not requiring dexterity to handle thanks to mechanics.
For mages, wands are okay but pale in comparison to actual melee weapons. Maybe unique conjuration magic to create phantasmal blades for cqc but benefit from intelligence.