>>3779065>>3779121>>3779121> I'll set up a tumblr since it's better for exposure
Not that guy, but you should do Artstation and Instagram. Forget about DeviantArt and Tumblr. Think a little bit more about what 'exposure' means, and what its actually good for. Exposure is only worthwhile when the right work is viewed by the right person at the right time. Exposure without intent is aimless and won't get you very far. Exposure to the wrong audience is wasted exposure.
You - as a hopeful fantasy / sci-fi illustrator - want to get your work exposed to a specific audience. That audience is art / creative directors. They are your target audience, as they will ultimately be the ones who commission you for well-paid commercial work. You will find much, much more of them on Instagram than you will on DeviantArt and Tumblr. There's multiple reasons for this, including (but not limited to):
+ The size of the platforms (Instagram is considerably larger than both)
+ Their growth/decline (Tumblr traffic has been falling steadily, while Instagram has been growing. It is still a good time to jump onto Instagram)
+ The makeup of each site (DeviantArt is largely composed of other artists - which is not your primary audience for your goal of becoming a freelance illustrator. Tumblr is - in many ways - anonymous, as people tend to create their own blogs & usernames independently of their real-world identities. Instagram is much more tied to real-world identities and real-world relationships)
This is not to say that Tumblr is a bad platform, but it is largely second-rate to Instagram in terms of its usefulness.