Thanks for the info.. You are standing above the rim.
Can You shoot a picture straight on to get a better look at it.
I see you indicate that the bolt pattern is 4x100
but what is the Offset. ? That would be stamped on the inside of the rim on one of the spokes. for example should be like ET36, ET48, ET50 or something like that

Set of 15" Rims for sale
.
or like this one which is 53.

Set of 15" Rims for sale
or this one which is 38

Set of 15" Rims for sale