Well, you liked them enough to buy them in the first place, just recently. And you haven't mentioned being displeased with anything (color, fit, price, etc.) about them. I mean, if you were displeased with them for some reason, you'd surely have said so, right? That's only sensible, after all.
So, I guess you ought to keep them.
But hey, I'm willing to get a dialogue going. So, what do you think you should do with 'em? Why do you think that?
Well the fit for the shirt and sweater aren't a big concern for me. They actually fit pretty well. Instead I've been reconsidering the colors I've chosen because I don't know how to pair it up with my current wardrobe. I'm more into neutrals, blues, dark grays, dark brown and then maybe a pop of yellow or green there but nothing like what I just bought. I thought the colors were cool until I tried them on and then started to second guess whether I can see myself wearing it everyday or every other day if you know what I mean. agghhh