Saw this over on the rptools site - and yes, I did notice the outhouse...
The maptool distribution has a load of old style playing cards built in. Go to help->Load Default Tables and you'll find them in the programme. Equally, you should be able to find the card images in the following directory:
C:\Documents and Settings\<user_name>\.maptool\resource\Default\Car ds
My only crit so far is that the planks on the floor are enormous. Not to say that such a size is not possible, just that they would probably warp if they were that wide, and are likely to not have straight edges as they would be the width of the whole tree. Can't help but compare the width of the planks to the width of the tree outside