If it's the first, you might start digging into some of Marc Brunet's channel on YouTube for loads of videos about art and concepting work. He used to be a concept artist at Blizzard a while back before pursuing mostly educational content. He even helped found an entire online coursework site called CubeBrush that has loads of great, paid courses/tutorials. Source: almost 2 years ago

Personally I have learned the most from paid tutorials, from like flippednormals.com , cubebrush.co/ or a artist own site. If you want long complete once thats the way to go. Often the paid once are from actual working artist wanting extra money on the side. Its till hard to find exactly what one is looking for, and I have bought crap that I did not complete, so be careful. Also I`m not only using blender but a... Source: almost 2 years ago

If you're willing to pay money, there are various creators on sites like itch.io, cubebrush.co, and gumroad.com that sell assets for use in projects. Source: almost 3 years ago

Incompetech - Royalty free music by Kevin MacLeod. - Source: dev.to / 4 months ago

Soundtrack is by Myuu, Kevin Macleod, Fesliyan Studios, and Syrinscape. Source: 7 months ago

Incompetech.com - good variety of music by one person, free with attribution. Source: 11 months ago

It's on the video, but just to be clear, the music is 'Echoes of Time' by Kevin MacLeod, used under Creative Commons Attribution 4.0 licence, http://incompetech.com. Source: 11 months ago

The song is made by Kevin MacLeod and probably is on incompetech.com however I do not know the name. Source: about 1 year ago