Gotta tell you more about this egg so you could get the idea. This is a magical time egg (and because of its magical energy vines and flowers start to grow on it, and if vines touch any tree logs or plants they immediately grow and bloom). It can give anyone the ability to travel in time, the ribbon, which is actually a sort of a ring with some ancient runes (which trovians have already forgotten) carved on it, and roman numbers, which represents how far in the future or past you can travel ( I - 1 year, V - 5, X - 10, L - 50, however the ring is damaged a bit, so you can travel only up to 10 years at once).

I did as you suggested and added the sky for the sun and the star-night sky for the moon, but not the whole egg is covered with it, there are some stone-ish colors, because with every use the egg lose its power and turns into a stone.

I just think that this "story" can make the egg looks more complete.