Brian
Well done and well weathered. I assume this is the Emhar kit. I have done the Whippet and have the Female in the to do list, and I see that this one has the same difficulty with the tracks. I know mine stood proud in a couple of places no matter how much super glue I used.
Did the instructions call out for a green colour? I know with the Whippet the suggested colour is almost a battleship gray, and any colour photos I have seen on the web have been museum pieces done in green, which I assume are repaints so may not be accurate.
While what Dom says is true of most peoples impressions of the First World War - there must have been grass at some stage before the mud ruled.
Brian