Hey guys! i found a bunch of autographs on E-bay and other websites of Queen, i would like your honest opinion on them, and if they are worth buying or not,

AUTOGRAPH NO.1:

This autograph is currently being sold for 3,800$:

AUTOGRAPH NO.2:

Which is a 2 sided autograph, on one side its Freddy Mercury, and on the other its Roger Taylor, it is from a collector which has had it for 20 years, as described in its description: 

AUTOGRAPH NO.3:

currently being sold for 1,500$, and is currently being sold by Cost_Effective_Consumables (Pandora Marketing) on ebay, it comes with a COA from them, they also have a website that they list their items there (sounds fishy but not sure) :

AUTOGRAPH NO.4:

A piece that is currently being sold on Invaluable:

AUTOGRAPH NO.5:

Sold at Ebay for 2,500$:

AUTOGRAPH NO.6:

AUTOGRAPH NO.7:

Also currently being sold on ebay:

I would like to know your opinions on each one of them, 

Thank you for reading!