More G1 Design Sketches - Octane, Unproduced Launch Bays, Sketches For Figural Erasers

The @miiakira2017 Twitter account continues to share G1 design work! Today, we've got some sketches for Octane, described here in a very British way as a "Tank Lorry"; artwork for a pair of folding launcher bays designed in the Diaclone Car Robots days, and what are described as figure studies for "erasers," but don't seem to match either the Decoys or the G1 erasers that were produced - at least the US ones. Keep reading to see the images!
If you follow the link back to the source Twitter account, please note that there are some NSFW images in there.