Whilst I like the way this is painted the position of the marine seems a little to far off to one side. It may have been better to have him more central and all the other stuff on the base hanging over the sides.
That is some really nice Marine Captain! I do like the base a lot and for your first attempt on a base i must say i like this direction a lot! 7,5 from my side of the town! Keep on happy painting! Regards jar