Fully Automatic?

But remeshing mostly does not do so nice topology and a “good quadrifier” will help…

Also: for those relief models there are some special programms… like for example:

or

and the according tutorials… (properly giving you a highpolygon model)

Do you know the awesome forum search function (top right :mag:-icon) ?? Then you might find something like:

When you want this “as simple” as you showed… there are thousend of ornament creating tutorial… some using the same high poly approach and some hwo to model this manually…