Print quality: possible Z wobble
No, this is not Z-wobble, Z-wobble is usually characterized by a repetitive distortion, from the supplied images this repetitive pattern is not observed. A Z-wobble pattern is typically caused by the lead screws, or the Z drive where carriage follows the X/Y motion of the lead screw nut.
A typical image of Z-wobble on a Benchy would look like:

Your print doesn't look that bad for a low-end 3D printer.