work for free to build a name for yourself and get more experience in the field. working for free also gives you more publicity because you have an infinite customer base
make sure you have examples of your work to show
most people won't be willing to pay or wait if they don't have any idea what the end result will look like
this is x5 important if you're not well known/new to the business since people won't have seen anything at all from you
also i noticed you're telling people to join a discord server to request the gfx, you're probably narrowing your customerbase by doing that
not everyone has discord and even then, people who do generally don't like joining a ton of random servers