Caterpillar

Not sure I want this in our garden. It was outside at this point on our garden wall.
It's head is a bit blurry because I've taken the photo from a short video. The one photo I took before the video was clear but it had its head hidden.
I think it's a lime hawk moth caterpillar but I'm no expert!
Overslept this morning but I had no appointments so it didn't matter.