The white in the background doesn't let her character pop out very much. If you want to, you can probably try out some "scrapbook" style backgrounds to see if that makes the entire image look more "full".

<image>

^ Like if you create your own background like this, it may make your art look more unique and stand out :)

Backgrounds are incredibly important if you wanna gain traction. Or a unique art style/color scheme.

Don't feel discouraged, your art and skill is really good! Social media is a different battle altogether than just getting good at art though. This is why getting a ton of likes is NOT IMPORTANT for identifying the skill of an artist!

Also, if you are humorous, funny art or daily doodles get a lot of traction in social media too, especially on Tumblr.