Thank you so much, just fiddled with my belt tensioning and noticed the X axis was indeed slanted. As for the unwanted moves at the end of every X move, I also discovered my left pulley was completely loose. Issue solved, thanks!

So I'm still trying to calibrate my Hypercube Evolution. I was unsatisfied with my print quality, so I got a new set of Gates belts. However, now my calibration cube's walls are slanted in the X axis. In addition to that, I'm having a weird unwanted move towards the end of my X moves. In the following image, the print start from the top left corner and the moves go clockwise:

I have no idea if this is tensioning or jerk, so if anyone can point me in the right direction, I would really appreciate it. Not sure what additional info to provide, but I'm on a Hypercube evolution with a Titan Aero and the latest firmware.

So I'm completing my Hypercube Evolution build and it works, but the print quality, of course, is not there yet. I know I need to calibrate, but I don't know what to look for. Can anyone help me determine what needs to be changed?

Here are some pics of my first print:

I am using Inland PLA from microcenter. No idea what I need to change to improve. Can I please have some guidance? Thanks!