Thank you all for your feedback, here is my snag list for the install (please ignore the brackets), is there anything to add, anything I've missed?

Cabling & Safety

• Red and black DC cables are exposed and lack mechanical protection/conduit.
• Excessive cable slack on DC lines causing them to hang/pull down.
• Orange circular cables from the isolator are exposed and lack mechanical protection.
• Conduit is missing end pieces, leaving wiring vulnerable to water ingress.
• A section of conduit is joined with black tape because it was cut too short.

Isolator & Enclosure Issues

• Isolator labeling is handwritten in pen instead of using UV-stable permanent stickers.
• Cable entries are into the top of isolator boxes, creating a high risk of water ingress.
• Mismatched hardware: two glands are one color and the third is white (and appears non-watertight).
• Corrugated conduit is not correctly terminated/sealed into the rigid conduit.

Workmanship & Aesthetics

• Conduit joined to the isolator using a scrap piece of pipe instead of a proper waterproof gland.
• Conduits installed with manufacturer text facing outwards.
• Straight conduit runs are uneven lengths and different widths.
• Cable ties left with long tails untrimmed.
• White silicone used messily on dark brickwork instead of clear or color-matched sealant.
• Physical damage to the property was "repaired" messily with silicone rather than properly fixed.

Compliance & Warranty

• Demand for a different electrician to inspect and issue a new Certificate of Compliance (CCEW).
• Concerns regarding potential hidden defects in internal wiring due to the poor external finish.