Before I get into the scent specifically, I need to talk about the quality of the product in general. The bottles are incredible, both in the way they look, and how sturdy they are. The fragrances are strong, but not too strong. Certain fragrances for me can be way too strong, and of course you want a cologne or a perfume to be strong enough that you and other people can smell it, but not so strong that it overwhelms you or other people, and these strike that balance. The fragrance oils are very highly concentrated, so the scent lasts for a very long time, at least 8 hours or more. And as such, these fragrances are very reasonably priced for such great quality.
Colossus is an incredible blend! It's a very nice citrusy, woodsy scent, and as it dries down, at least on me, the vetiver comes closer to the forefront and it becomes a little more grassy, with that citrus and woods still in the picture. The vanilla and the musk add an extra little touch to it, and it's just wonderfully blended. I believe this one is great for spring and summer, because of it's unique grassiness, and I feel it could be worn any time, but I will likely use it for something casual.