Your yellow battery door looks really good! I just got one myself, in Powler color. I changed the color of the frame as well.
I have quick question for you. Have you tried using the speaker while talking on the phone after you place this battery door? Somehow, when I use this batter door and use speaker while on the phone, the phone creates the "screaming" sound, like when you put microphone and speaker too close together and it creates the sound.
Do you have that problem? Thank you.