Bug of background

[xiangxinhello]

How to set parameters and prompt words, only change people, not change the background.
What I did was to change the character of the cue word, but the result was a little different from my own background.

[xiangxinhello]

I think the reconstruction is very poor, is there anything that can be fixed and improved. The main problem is that the reconstruction is a little distorted.
Looking forward to your reply.
Thanks