I found some pictures from the same sessions as the album cover shoot (I guess). It's where the band is walking over rocks along the shore of a lake or river.

The hand on top must be Jon.

The hand with the ring on the little finger top-left is probably Richie, because on the other pictures he also wears a ring on that finger and a similar bangle.

The hand below in the left corner could be Dave, because of the bangle.

Tico also wears a bangle - that could be the same as on the hand in the right corner with the star. Anybody knows for sure who has that star on his hand???
If you look closely you see a ring on this hand - Dave wears no ring on his right hand and Tico does (but I can't see it clearly enough to be 100% sure).

In the upper right corner it must be Alec then. It also makes sense as he doesn't wear a bangle on the other pictures.