I've been working on this sunflower decor for months. Through many iterations. I had it rejected because of the lines.

Last time it was "Hi again! Thank you for the changes! The decor has improved but it's still a bit pixelated and needs to be smoother to match the lion. Besides that, it's good and will be approved after this small fix."

https://i.postimg.cc/Y9Kr02Cb/Garden-Sunflowers-V2.png

I realized my resolution had gotten messed up and was way too low. So I upped the resolution, increased the size like Xylax recommends, redid every line in the decor, then reduced the size back to Lioden specs and submitted this:


https://i.postimg.cc/q77nwLs9/Garden-Sunflowers-V4.png

but I just had it rejected with this response: "The decor looks good but the edges are still a little too sharp. If you could make them a bit smoother, it would fix the issue. This is the only thing that requires a small adjustment and the decor will be approved after the fix."

I'm kinda at my wit's end. Any advice on how to fix the lines at this point? Do I need to swap the black for a dark brown & dark green (flowers / leaves + stems)? Take a soft eraser to them? I'm not sure what is the sharp part - the color contrast or the actual line edges.