Maybe close H, but it looks like u just drilled a hole in it.... A crooked one at that.... Alos, the thickness of the fuselage on the model is about 6 times as thick as the real thing... I can see the thickness in ur pics.... Maybe try and whittle away at that to give the impression of thin sheet metal...
Not knockin u, just tryin to get it alittle more realistic for u.... And as far as the rib goes, I'd remove it... If a cannon shell made that kinda hole, the rib would be gone as well, and there would most likely be an exit hole....
The 2nd pic is an exit hole btw...