Wingfeather Tales Differences (Spoilers)

Today, I got a first edition copy of Wingfeather Tales in great condition off Ebay for only $10!!!

Very quickly, I noticed that some of the illustrations in the original book were different from the current hardcover release. It's just too interesting not to share! (@Leeli Iggyfeather (ᛋᛟᚾᚷ ᛗᚨᛁᛞᛖᚾ) here you go!)

This picture here is the last picture from The Prince of Yorsha Doon in the original book: https://imagetolink.com/ib/ep80MZZUXF

Compared to the current one: https://imagetolink.com/ib/a2i1jIpEMF

The Places Beyond the Maps is the only other story with different pictures. All three of its illustrations are different but still drawn by Aedan.

First picture – Original: https://imagetolink.com/ib/mYi49INldM

Current: https://imagetolink.com/ib/ZKicYGcy3i

Second picture – Original: https://imagetolink.com/ib/dRhUVXPLuI

Current: https://imagetolink.com/ib/BLRhYPBWD7

Third picture – Original: https://imagetolink.com/ib/NV4JKjswxH

Current: https://imagetolink.com/ib/r6DDa1c6V0

I didn't know that there was any difference until I got the original today. Another cool thing is the original includes the map of Aerwiar: https://imagetolink.com/ib/GAMdARFkrb

Note: The original doesn't have the Shadowblade and the Florid Sword comic as it was made for the hardcover release.

What are your guys' thoughts on this? I think it's pretty cool, but I wonder why they changed the illustrations.