Dear authors,

Your manuscript has been reviewed a second time. Both reviewers agree that the paper has improved significantly and deserves publication in eSurf after some remaining adjustments. Please take in consideration both referee reports and comments that come with this decision.
I would add that the authors could, if they wish, enrich the coverage of previous work on drainage reorganization by adding references to authors such as Goren, Willett, Guerit and Shelef who have all recently performed work on this topic, experimentally and numerically.
Second, I remain unsure as to whether a maximum relief of 11'000m is, or not, problematic. It is not necessarily shocking since these are numerical landscapes, but it still main underlie some slightly extreme values in the choice of parameters. You could decide to explicitely say that some of the landscape results are extreme (perhaps not terrestrial), or to remove the simulations that produced such high topography (given the very large number of simulation performed, this would not modify the overall picture).
I'm checking the minor revision box, and I will look myself at your resubmission, i.e. the paper will not go for a third round of reviews.
All the best and thanks for your work.
SC

Dear Authors,

Thanks for your quick response and considerations of latest comments.

I consider that the paper is now fully ready for publication.

Many thanks for submitting to eSurf.

All the best,

Sébastien

Dear authors,

I'm pleased to confirm acceptance of your paper for publication in e-surf, after reviewing your revised manuscript in the context of the reviews and Associate Editor recommendation. I think your work will make a great addition to the journal and to the developing understanding of topographic and geomorphic controls on biological evolution. It will be exciting to see the directions that this model is taken in the future.

I've noted a few minor suggested edits for clarity and grammatical refinement, on the attached PDF. I leave these to your discretion, but you might consider attending to those change you'd like to make now, before uploading final versions for typesetting.

Also, please note that e-surf provides the scope to add links to data and videos as "Assets" associated with your paper. You can see this in some of the published articles. You might consider adding the links to your videos that way. The Copernicus editorial team can help you with that.

Thank you again for choosing e-surf for this work! And I am sorry that the review process on this submission was somewhat delayed.

Josh