Smooth round, Seebbin, 360cc butt implants - room for improvement? (Photos)

40 y.o. woman, 172 cm height. 56 kg. I was happy with my hips but lacked projection in my butt (side view). I had butt implants (round, smooth, sebbin, 360 cc, intramuscular placement). I had seroma in the right side (350 cc evacuated in 3 days, culture ngtve). I'm OK with the volume, but there is asimmetry. The contour of the implant is visible especially in left side, the lower part of this cheek not full. Room for improvement? I alredy had 360º lipo in the past for lipofilling of trauma wound