He's gotten better at backgrounds.
Still, she's taken an interesting turn character-wise, the first chapter of the manga had vastly different energy to the light teasing she does now. A small shame the art does tend to get a little lazy with her going chibi ish in most of the frames she appears in lately, senpai gets more details than her.

I feel that she was prettier in his past style, but is cuter in his current one.