This game is pretty cool, I have some suggestions.
I think there Should be more events like; Stealing other stuff from Enemy Colonies (Wood, Food etc),
Colony Wars; Winning Gives you Food, materials, Eggs and Storage at the cost of Soldier Dragons and/or Normal Dragons too (Increases Rate as you have more Dragons in your colony),Events that can make you optionally make colony wars as well. (ex: Random dragon stealing egg from you)
More Comments on Getting absurdly High amounts of Food and gold;
ex: Your Home is Little more than a divot in a cliff, winding down into a small resting place. It is place where Gold flows out of it like water. Filled to the brim with so much gold that it is hard to walk inside and outside, even for a dragon like you, it might be not enough.
There Should be more events that are negative towards the player. Like Food Rotting, Water Becoming Undrinkable, Plague between the dragons, Natural Disasters destroying houses, storages and killing dragons.
Dragons having reactions and arguments between eachother, and you need to talk your way out of it or exiling them. (Realisticly they are greedy creatures this not happening is kinda unbelievable.)
Builder Dragons being more smart, Like why 55 builder dragons are planning to make A SINGULAR HOLLOW. They should be divide eachother into groups with 5 dragons, in them each group should be able to make seperate buildings.
More Buildings. If the builder dragon plan is used it makes sense to have buildings that give more Storage, and drops the chances of bad events from happening like "Fridge" that decreases chances of bad event like food rotting and giving you a huge amount of storage like 100.
Mass Building a building feature, its good to have a QoL like that.
my current colony (that i currently deleted accidently while typing):
