You could read out each byte of a jpeg to someone (or invent a different format in pure English). That is an example of an English description that leaves no details up to your imagination (that aren't also left up to your imagination by jpeg).

Further, really detailed and well written prose can describe 3d scenes -- and help the reader visualize them -- better than everyday photographs, 3d computers renderings, what dolphins have, etc... There is no limit to how much detail prose can include.

As a practical matter, we do not use English to its full capacity, and it's inefficient for some things, but still it is universal.