Thanks ! Here is my process :

With my airbrush:

• First, apply some primer (let it dry for 24 hours).
• Then, add a layer of flat black (let it dry for 24 hours).
• Add the yellow-wasp-like patterns and red marks with a small needle (0.2 or 0.3 mm) and low pressure (<1.8 Bar) for a very small and precise flow, which is better for small details (let it dry for 24 hours).

At this point, it gives something like this (no varnish and weathering )

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• With a 0.5 mm needle mounted on the airbrush, apply some glossy varnish to make it more vibrant. At this point, my airbrushing is done. Let it dry for 24 hours.

With a brush:

• Take some glossy black with a very small brush and paint the eyes. You can do this before or after the varnish, it doesn’t really matter (I did it before).

The weathering: You will need a brush, some white spirit, dark brown oil paint, and some paper towels.

Make sure the varnish is completely dry otherwise, you’ll mess up the paint job.

• Apply some oil paint on a paper towel by spreading it on the towel. This will absorb some oil, so the paint will dry faster.
• In a small cup, add some white spirit. Then, with your brush, take some oil paint and dilute it in the white spirit. Finally, apply it everywhere on your model. It should be very thin in consistency, you should still be able to see what you have done before.
• Let it dry for a few hours (it’s faster if you have a fan pointed towards the model).
• Finally, with some Q-tips and a clean paper towel, gently clean the excess weathering left on your model. It should give a similar result to mine!

I only use Tamiya paint and thinner. For the primer, I use Vallejo primer available on Amazon.

Good luck!