3 Points that need Improvement (Boss visibility, area size and DoT)

I now played a Pathfinder Poison and switched to Sorceres and there are 3 main points i want to adress:

1. Boss sizes and their skills:
At smaller bosses, like Viper Napuatzi, you can see all moves of hers clearly. But with bigger bosses, like Doryani in his machine, the visibility vanishes as soon as you are not in melee range. This makes it very hard for ranged characters to stay ranged as its very important to see what the boss does.

2. Area Size:
Some areas are way to big and feel like a bad walking simulator. Areas that come in mind are Dreadnought and Aggorat. I think cutting the bigger areas by at least 10%, 20% might be better, makes sense to me.

3. DoT's
3.1 Right now DoT's are an addition to dmg but not their own playstyle, as they primarily scale with the Hit-Part of skills, except of some skills like Gas Arrow.
3.2 There is no difference between Ignite, Poison and Bleed. EG: You can increase the max amount of poison, but it doesnt scale with attack speed, because theres a limit quite small limit (probably 10 stacks?).
3.3 Poison DoT feels like it has no damage, even after taking all poison nodes. I hope its not the same with ignite and bleed. And after playing my 2nd character i now know what it means to have an ethical amount of damage.

Best regards!