Fun concept here with excellent names for benefits. A seasonal title with fluctuating bonuses is a fine addition to the game, and I can see the same concept easily applied to other forces in the Timescape as well.
Others have dug into deeper critical feedback, so I'll only lightly brush on it here. Some options are clearly better or worse than others, but that can easily be fixed with another editing pass for balance. This also would add a lot more for players to consider each respite and how they plan for future ones, but I think that too can be easily adjusted for the group by a director tweaking the cycle to only change each level or mirror the seasons in world.
All in all, a solid foundation to work from and a fine submission to keep in the pocket for sparking later ideas. Good work.