Thanks @kurzum, all.
After the 2021.09 release, I updated the browsable_core collection to include images. I also simplified it a little to avoid too much information in the generated user interface. The procedure is now summarised at: https://github.com/rhizomik/rhizomerAPI/wiki/Deploy-Neptune-and-Rhizomer#prepare-dbpedia-dataset
Regarding the outcome, there seem to be some issues with images. For instance, for the first 10 insects, just 3 of them seem to have a picture of the actual insect: RhizomerEye
Moreover, looking to further simplify the UI, there are many properties that are repeated in the DBpedia Property and DBpedia Ontology namespaces (i.e. dbp and dbo). Are they kept separate in different dump files so I can choose to just load those from dbo?