ah- Thank you for pointing that out! I didn't even realize! I use clip studio paint for my pixelart which I don't think works exactly well for the medium, but I've definitely made my edits!
Thank you for welcoming me! I hope to post more pixels here soon!
Ah yes! You are exaclty right! I had tried to anti-alias to a white BG and I didn't think to clean it up before posting! Thank you for telling me, I've made my edit!
Thanks for the warm welcome! ^ v ^
There seem to be some accidental stray pixels and semi-transparencies, esp. in the speech bubble.
Nevertheless, this is very cute and well pixeled. Welcome! 
The main flaw I can spot are the stray pink pixels on the outer edge of the cushion's outline, as if you were trying to anti-alias to a white background. You should clean those up. Otherwise really cute piece and approving it into your gallery!
Welcome to Pixel Joint 
So cozy! I especially like the palette you used and the smooth and simple shading :)