The whole scene is 872 triangles, and she's got a 1024^2 texture. The TV got one too but I could have made it only 512^2. x3 Her rig is based on Mya's but with fingers.
Use Blender. Implement geometry node front/back feature to lay down two faces of design on a single plane. box 22 tris, emotion card 2 tris, matching card 2 tris
as Uly said: 2 planes (quads) intersecting each other, so it forms a + if you look at it from above, (= 2x2 = 4 tris) then 2 quads for the axe so you can mirror that. (4 + 4 = 8 ;))