This cover up is totally do-able. Anything with scales like fish or mermaids, snakes etc are awesome for cover ups.
I’m covering a slightly bigger and colourful tat than yours with a pin up style mermaid.
I’d suggest using colour aswell as black and grey shading to take the eye away from the old tattoo as much as possible.
I hope it turns out well!
Post up when you get it ๐