to be honest it comes down to two issues when it comes to the pegasi. I am not very good with drawing wings (just take a look at the pieces i have done who have wings) or usually i get very focused on the figure drawing and forget about the wing,horn,or tails. For this particular piece i could i intentionally left off the wings as it was a recreation of the ending scene of Top Gun and I wanted to depict the pegasi as pilots wanted their jets to acting as their main mode of transport. i could have including the wings but was not very confident in my ability to draw them. one i gain a bit more confidence I intend to include wings in future art.