These are collected Art Cards, some from Trading Card companies and some not. :)
Captain America and Bucky Barnes by Matthew Clark.
Loki Mastermind cards by Federico Blee and Elvin Hernandez.
Unknown Artist
Loki cards by Tina Berard and Alex Magno.
Commander Rogers by J. David Lee and Lui Antonio.
Cap by Matthew Clark
Loki by Jeffrey Benitez and George Calloway.
Loki by Darren Chandler.
Loki by Ian Yoshio Roberts and Unknown.
Bucky Barnes by MJ San Juan.
Winter Soldier by Nik Virella and Jeremy McHugh.
Commander Rogers and Steve Rogers by Bienifer Flores and Jomar Bulda.
Winter Soldier and Captain America by AJhay Cerezo and Juno Sanchez.
Loki by Nik Virello
Puzzle card by Irma Ahmed AimO
Loki by Chris Furgusson.
Winter Soldier by Pappy and Cannonball by Lee Kohse.
Loki by Stephanie Pui Mun Law
Loki by Wu Wei and Don Garman.
Loki by Unsure and Nac Harper
LOki and Thor by Javier
Bucky and Steve by Javier.
Peeta by Sara Silva and Cap by Javier
Elrond and Captain Hook by Javier.