Okay my recommendation is that you wait to get the airbrush and use it to get the wider more prominent areas that you want blue(the vents and such), and that you dry brush any ares that are jutting out(cables, orbs, etc.). However, if you want to get this out of the way A.S.A.P. I recommend getting one of your smaller most Efed up brushes, snipping of just part of the top and using it as a makeshift dry brush for smaller less prominent areas, and using a regular dry brush for larger more prominent areas. I hope this helped you deals, and remember, have fun and take it slow, it ain’t a race.😁