For the images, try right-clicking on one and clicking “Open image in new tab” so you can see just the image without anything else. Use that link.

For designing, keep in mind that at the tip of the nozzle where the soft plastic is hardening on the model, the nozzle movement is pulling on the hardening plastic and actually putting a lot of force on that part of the model… there’s nothing you can really do to change that, it’s just how printing works. You kind of have to design around it.

From what I can see in the images, your calibration looks fine. The layers are actually aligned really well, I wouldn’t change anything there.