is an open birdcage with small black birds flying out surrounded by big flowers a nice idea to cover my self harm scars?

As long as you like it, thats all that matters.

Yes. I like it. The open cage represents freedom. The bright flowers represent the nice things in life. The small birds indicate life always has hope. I really like the idea and wish you well. I have faith.

I must warn you: Small birds flying tattoos do not age well. In ten years they'll look like little black blobs. Plus they're very trendy and cliche. Birdcage and flowers...good idea.

all depends on how bad they are and most tattoo places won't even do a tattoo over them as i know from experience