The images of your first print show that you are, at the minimum, having some underextrusion issues. I also had issues with under/over extrusion when I first got my Wilson II up and running. The guide that helped me the most with this was MEH4d’s Part Fitting Calibration guide. After using that guide to tune my E-steps/mm, many of my print quality issues went away. I also found that setting all of the extrusion widths in Slic3r to my nozzle diameter helped a lot, though some models require a bit of tinkering here.
You also appear to have some issues with layer shifting in your X axis. Have you set the current on your stepper drivers? Alternatively, you may be having issues with your frame not being rigid enough. Try turning down your speeds a lot (like ant0ny said). For starting out, try 40mm/s perimeter, with 25mm/s outer perimeter and 40mm/s infill. It’s gonna be slow, but it makes sense to get your printer printing well before you try to speed it up a lot.
Finally, make sure you have a part fan if you’re printing PLA. It helps a lot with tall parts.
EDIT: Also as ant0ny said, try a 0.3mm layer height, and a 0.3mm initial layer height. 0.4mm layer height is pretty large, and will worsen any underextrusion issues you may be having.
EDIT2: I’m not sure how Cura works, but Slic3r will put some of the print settings at the top of the GCode file. Open up the test GCode file in a text editor and see if there’s any info there.