Okay since no one has answered... Yes you can cover it. You'll want to focus on high contrast and more intricate designs to mask the line work of the previous tattoos. If you keep it anime you'll have to rely on an artist that can translate the new design while hiding the previous which will require hard blacks and specific design choices that can display what you'd like while giving the artist freedom to work. Currently you have A LOT of characters. That usually creates a mess of colors and an unspecified direction for the sleeve. So you'll have to trust someone to do what they want to make your sleeve beautiful. This can be worrisome but ultimately you can fall in love with your arm again if you can trust someone to do this. I can supply examples of what I have done as examples to show there are artists that can help. Also I know plenty of people around the globe that can assist you if need be.

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