-the tail part should be a bit longer and scaled up a bit.
-the "wires"that go along the tail to control the rudder are missing .
-on the side aswell as on the front there need to be more detailing .
- the rotor blade on the back is still missing
- the rotor on top off the helicopter needs to be a lot bigger
- the top of the helicopter is to round and should be longer
-the body stands under a slight angle on the landinggear
- the model isn't smooth enough delete half of your helicopter and replace this half with a smooth proxy.
i hope i didn't discourage you, but if you change these things your model will be that much better for it and so will your modeling skills.
Get as many sourceimages as you can get and preferably photos shot from different angles.
study them and if you work with 2 monitors put them in your secondary and look at them while you work on it in maya.
it is as petrol said ; do or do not..... there is no try
