Western Sharks coach Craig Williamson was impressed with Seymour's approach to the game, noting his organisation and professionalism.
"You can tell he's the next step up," Williamson said after Seymour scored all of his side's points in their 24-13 loss to Old Boys Marist.
"He's got the organisation in the backline, and the passes putting you in the space [and] he's got a good punt on him.
"He's pretty professional too, [but], that's what you get at that next level.
"We've got good backs now but the forwards aren't really producing, it used to be the other way around but it has taken a while to get the backs you want up to it."