Just keep in mind - the main ingredient for producing any of these kinds of really cool detailed organic models is a very high level of skill and fluency on the part of the artist.

It involves the artist spending many many many hours often over the course of many years perfecting their technique so that they gain an intimate understanding of how to adjust points in 3D in subtle ways to get the results they want.

Do not make the mistake of thinking that any of these things are "easy" !

- Michael