Upset/crying picture for the underside.
Based on the original by Catlover1672 >>777238:https://derpibooru.org/images/777238
I think the slight alteration on the incline on her head, and the fact her eyes are slightly bigger on my rendition are a marginal improvement. Still, the original did give me something to work from, and is a pretty good piece of artwork itself.
Next picture going on this model is this one, which I drew myself >>886046:https://derpibooru.org/images/886046.
This is going on the top of the transport.