Good work man. I feel alittle ashamed as someone who actually studied Arabian tribes hehe. Their accent seemed closer to jidawi accent and their clothes looks closer to Omani
Lotfy
Al Ahsa is located in EASTERN KSA near the modern day Omani border so it follows that the garb is similar. Here is a Khanjar perported to be from the Al Ahsa region, and this also bears similarities with the Omani Khanjar.
Stu