Thanks guys.

Aferg, yep it's the old Tamiya kit with aftermarket conversion for the 76mm HVSS.
Yoxford, yeppers that's the T-23 turret I told you about. I gotta get that book as well. I used Modelling the US Army M4 (76mm) Sherman Medium Tank by Steven Zaloga for reference pics and for inspiration.
I thought about adding the canvas on the mantlet, but I read that its actually quite rare for WWII US tanks to have those, but they're a lot more common during the Korean War.
That's why I opted not to put one on my Pershing as well, despite the fact I already put the mounting brackets for the canvas already.