Short range air transport pt.2

Little side project, wanted to design some vehicles roughly following the approach used in fpv racing drones - something built of readily available elements like engines and whatnot, but customized for the task at hand. And since speed is no concern for my work vehicles here, neither is aerodynamics. And whatever aerodynamic flaws there are, the software managing this thing can (hopefully...) correct on the fly. Second one is this skycrane/heavy lifter, more to come.

Built using 3d photobashing, some scans, textures, some mine, some from freely available resources on the internet, some bg assets from Sketchfab, hdri from hdrihaven.com. Credits, as many as I can recall:
https://sketchfab.com/b_nealie
https://sketchfab.com/alexdelker
https://sketchfab.com/matousekfoto
https://sketchfab.com/Dystopia
https://sketchfab.com/spogna
https://sketchfab.com/omri_ha_muglob
https://sketchfab.com/flightmaster177
https://sketchfab.com/colcampbell
https://sketchfab.com/scann3d
https://sketchfab.com/leoskateman
https://sketchfab.com/alban
https://sketchfab.com/thesidekick
https://twitter.com/3pointedit/ (thanks for those texture/references photos man :))