You're about an inch off his girth. He's about 5-5.5
In terms of those videos it's quite hard to tell the length of the first two as they have very curved penises, but they're very girth. At least 6 on both. The 'nut' one could be pushing 7 inches girth.
The morning head one looks about 8+. At one point she has two hands on the shaft and there's a fair amount left over. Girth is quite hard to tell on that one.
The one with the girl with cuts is probably 7.5 by 6.5. However, there's a bit when his penis flops against his stomach, and he has a fair bit of fluid retention around his circumcision scar, so he may well have just pumped.
The last one, skinny and long. I'd go with 8, maybe a little bit over 8, but with a 5 inch girth. She looks like she's quite a short woman though.