Hi Gwendolyn,
 
I think you will find this link to your liking and it is an excellently researched and presented set of videos about the seals, trumpets, and vials of Revelations. Strictly SCRIPTURAL, he goes in deep detail and uses ONLY the Bible to interpret itself, VERSE by VERSE.
 
http://www.tinyurl.com/RobertVanKampenBiblicalDefense
 
YBIC
 
Michael