Among the many terrific resources made available online by the Smithsonian Institution is a page with 3-D images of fossil hominin cranial casts that you can manipulate to view from every conceivable angle and perspective.
Follow these links to explore 3-D models of Neandertal crania:
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:26d7a906-8c29-4f2c-ada6-72050d7a75ec
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:8be55c34-1d02-4453-a7dd-c073ebdd38ab
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:5b3ead12-0fb2-4a9b-b5bf-b7a92be656e8
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:ebe9fd8c-6aca-4193-a672-50193bc89296
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:f3d4cfd8-3aaa-407b-ab39-e710b79870ac
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:62c5a1ab-24bc-467d-8566-5e67be2fc41d
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:eb19cb72-335c-40b0-817c-8bd97c61a49b
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:dbfe133c-a4c0-4744-bf5d-b2373a986793
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:fe7bd1eb-c632-4201-81e2-fc592592ee57
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:c6f0a923-25d8-4e77-baf2-2463ec5f9cb5
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:962deb53-1f5a-4b35-ab08-564ad699dbe0
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:7fe35d59-2a5a-4c73-9c5e-08ee193299ba
https://3d.si.edu/object/3d/homo-neanderthalensis-cranium:e1d52763-db16-43c1-a241-a097aec1b236
To view all of the models follow this link: https://3d.si.edu/collections/hominin-fossils