Before anyone gets any funny ideas, this is from a 4-days-old tweet, and the artist has since published the much brighter-themed post #9542476. From that and some other statements on Twitter, it can be surmised that they have frequent mood swings between "highly depressed" (with possibility of suicidal thoughts/self-harm) to "generally okay".

That is to say, this alone isn't an indication of high risk of suicide... so far. But I am admittedly concerned for Raliele's mental well-being, nonetheless. Here's to hoping that they can overcome their evident case of persistent depression.