I would have liked to put the crew in the set up but unfortuantely they got lost or thrown away

This is the first thing like this I've ever made so there was alot of experimenting. I did not want to put money into a professionally made wood base for my first one, so I just grabbed a nice looking garden rock. :-) The whole thing (except for the tank) cost me virtually nothing, however I am planning on getting a stowage set...as for Stug's suggestion I'm not sure how to make a tarp, sounds like a good idea though...any help on that would be appreciated. Thanks for your suggestions