This artist uses real photos and 3D as drawing models, which means they draw on top of them.
https://www.pixiv.net/users/37002933
https://www.pixiv.net/stacc/user_dycc7238
https://twitter.com/TAMA38302460
https://twitter.com/tamatam36299481
https://twitter.com/intent/user?user_id=1155141603717046272
https://twitter.com/intent/user?user_id=1465309748052774912
https://seiga.nicovideo.jp/user/illust/46239239
https://www.nicovideo.jp/user/46239239
https://tama0802.fanbox.cc
https://www.pixiv.net/fanbox/creator/37002933
https://sketch.pixiv.net/@user_dycc7238
https://skeb.jp/@TAMA38302460
https://skeb.jp/@tamatam36299481
