Their channels:

Keira h: https://www.youtube.com/channel/UC4DBb0nFp76PZobRPI-az2A

Melody: https://www.youtube.com/channel/UCwaUcI9BgPX3tpSR06JIP6Q

Arts:

Lullaby for a princess (fan version): https://aminoapps.com/c/equestria/page/blog/mlp-lullaby-for-a-princess-draw-me-and-my-friend/77vW_LQsPuamQXVEB50p1Jg5ddRB0GzLno


Friend art: https://youtu.be/s5stCQeamB8