2 months difference. I’m not gaslighting myself, right??

NSFW just because it is just my butt and stomach. I’ve been doing strength training 2 days a week since October (missed a few days here and there) and I just put a side by side from November to today. I feel like there is a HUGE difference but am I lying to myself?? I feel so much stronger and so good. I also have no idea what was up with my posture in the before picture 😭