Hello Dirk. Please do not stop your build log - that would be a terrible shame. When we give advice or point out something that is not right, it is not to criticize - it is to point to something that you can be aware of in a future build. If all a forum does is to hand out compliments, then the very important factor of learning as we build is lost. Look at
@Steef66's build log where he has redone all the shroud lines when it did not look correct; look at my build log of the Batavia/Haarlem where I had had to redo and still have to redo several items - it is all part of a learning process.
Your problem at the bow stems from the fact that you have not faired the bulkheads at the bow enough. No kit in the world will give you instructions on how much or how little to fair bulkheads - that is something that you can only discover by trial and error and by acquiring a "feel" for the lines of a hull. Have a look at my current build log of the Willem Barentsz.
https://shipsofscale.com/sosforums/...-willem-barentsz-kolderstok-1-50.8662/page-10 I have included a section on how to fair a hull (as taught to me by
@pietsan Piet Sanders). Also have a look at the section "Tips and Weetjes" on Modelbouwforum in which Piet covers hull fairing (afschuinen) and planking in detail.
With regards to the balsa filler pieces at the bow and stern - all kits differ - even Kolderstok (whom I regard as an outstanding manufacturer) differs between individual models of theirs. They supply Balsa on the Batavia and Willem Barentsz, but not on the Duyfken or 7P (in the latter's case a different method is used of forming the bow). Again on my WB, the filler pieces I have added between Bulkheads #1 and #2 are not in the kit instructions - it is something I have learnt from Piet. And so I can go on and on.
Building a model is not just a case of following an instruction manual - it is also a case of learning from others and developing your own knowledge and strengths as you go along. No one says it is an easy process - but it is a rewarding one. Building model ships has taught me many things - but the most valuable lessons it has taught me, are the ones about myself.