Thanks for generous sharing of your artworks!
Usage of color pencils for aircraft illustration isn't a common thing, especially in our days of computer-rendered images and AI. Maintaining unified angle of objects, IMHO, adds the consistency and offer nice options to compare different designs' features. Another good idea is the adding saturated orange and red fields - they made images more vivid and attractive.
Keep up the good work! Hope, your illustration soon appears in the books or magazines.
P.S. Did you see the Mike Machat'
video about drawing aircraft with colored pencils?