Edit: What? No, the artwork is good, though for the sake of artistic growth, the anatomy and posing of the first "Sexy Rouge Sonic" picture is stronger and you should keep doing what you've been doing in that first one. I ironically may have been offensive in going off on a tale of how I was raised to be overly-sensitive about this stuff. I should have just said what I said in this "Edit" section, that would have been more useful and helpful for you.

This reminds me of when I was in art college and had to redesign the cast of Mega Man for a character design assignment. A lot of the guys were very careful about designing Roll and Splash Woman, making sure they didn't reinforce any dated stereotypes of female character design. Meanwhile, some of the women in the class just straight-up re-interpreted every single character as absolute babes with impossible hourglass figures like how you drew "Sexy Rouge Sonic" here.

There's a lesson here somewhere, but I'm not sure I've still figured it out or if I'm even allowed to figure it out, considering what U.S. State I reside in.