Is my lip filler migrated or is this normal?

I got lip fillers only twice in the past two yeas and each time it was 0.5ml. By the second time around I started seeing a ledge or obvious over lining of my lips that doesn't look natural. So several months (9+) later I went back to my injector and asked her to dissolve some filler so I can get fresh one without the ledge, she dissolved only the moustache part and a week later I went in for another 0.5 ml. But it still looks unnatural to me! Pictures before any filler attached for reference.