I like the paintjob, the camo, the weathering. Also, this is a tank not to many people model (I mean w/these markings).
There are a couple things any of the Shermaholics would notice that are errors:
1. Those oval plates next to the taillights should have been removed (an error of the kit, they were only present on the M4A2).
2. Your taillights are the wrong color (only the top left one should be red, the others black).
3. A pretty big seam between the trans. housing and the bolted strip...that gap needs filling b/c in reality that bolted strip was not a separate part, but part of the transmission housing.
4. The spare tracks don't match the ones on the tank.
I like the stowage, but a couple of straps or ropes holding it all down would be a good idea.
Other than these issues, which are pretty minor, I think it's a very good work.
Rob