Pale Garden: Better overworld implementation

I think the biome with its special looks isn't really well implemented in the overworld. Unlike other biomes the transition to the pale garden shouldn't just be a straight line. In my opinion, these two solutions could work quite well:
1. Make some trees from neighbouring biomes grow into the pale garden.
2. Make the biome generate some blocks lower than the dark forest. (when the drop from the dark forest would be more flat than steep, both features could work hand in hand)
Like that the pale garden would feel like an old forest wich has been around for quite some time.