I've originally used almost all of the main characters at RP forums back when I still did that. I got a little too into their stories and started writing a book about them that I forced all my friends to read. And now UL is my dumpster for all my ocs. I needed to use them somewhere.
Being a freelance artist means there is no "place" where you can go. You are it. You want work you send your portfolio, as in examples of what you can do, to possible employers or clients. Post info on your work and your prices on whatever sites you may be on. And if you don't want to get scammed, ask payment beforehand.
That being said I have heard there's some site where you can put up a profile or something if you do art commissions, but don't know what that site is.
Line exercises are great, I should do them more often. These days I only do them after I've gotten frustrated over shitty lines >_>;
Other than lines I do studies of anatomy, architecture, plants, animals, etc.
Also I study panel layouts by deconstructing my fav comic creators' pages and trying to recreate their layouts in my own pages.
Another fun thing to do is pause a film or tv series and redraw the frame layout. You learn cool angles and composition that way.
For warm ups though my recent favorite is Quickposes, aka gesture drawing. You spend a minute or less on each drawing, so you teach your eyes and hands to find the essentials fast. You learn natural poses and anatomy really efficiently. And that site is so great because you don't have to go looking for the ref pictures yourself.
I've wanted to draw comics of some scenes from The Lies of Locke Lamora for some years now, it just seems impossible to find the time for it these days.
I just love the book so much and with the lack of other media for it like a TV series or game or whatever I want to visually bring it to life myself ~_~ I'd love to draw the entire book if it wouldn't take like 10 years. I'll just wait for Scott Lynch himself to get me to draw it for real /cough
I've got a couple made-up languages but they're not fully formed at all, I just make them up as I go along. But I've got some similar ideas as others here.
There's Mischief's mothertongue that I type in dark red. It's basically a mix of Finnish, Swedish and what little I can teach myself of the Sami languages spoken in Finland. Combining them all gives it a nordic look to fit into the setting, but still alien. Swedish grammar is easier to fudge into a fake language than Finnish is, so that's the grammar basis for this language.
Then there's the elven language, typed in blue. Also influenced by Finnish, because well it's my native language and if it was good enough for Tolkien's elves it's real good for me :D This one's not a combo of any other languages tho, just Finnish put through weird loops to make it sound more... dancing? If that makes sense (Finnish is normally very monotonous).