The turret is all wrong for a Jumbo. The curved mantlet was used on 75mm gun tanks and 105mm howitzer tanks. As for the hull, it is a Wet stowage welded hull, which the Jumbos were based on. However, you can tell this particular one is an Easy Eight by the little brackets holding on the mudguards at the bottom of the picture. That feature is unique to the Easy Eight Shermans.
Not an M4A3E8, but an M4/M4A3(105) HVSS - A3E8 would have the D82081 turret and distinctive 76mm gun shield, not the depicted M52 gun shield for 105mm. Outriggers for the track dust shields are not unique to the A3E8, but common to HVSS types.
A Mysterious Fad That's Taken Hold on the Frontlines