Decoupage the pictures directly to the glass. Apply a layer of decoupage glue to the front of the picture and stick it under the table so the picture is visible when looking down through the glass. Apply another layer of glue to the back of the picture, extending it slightly to the surrounding glass to seal it in.
Place a piece of fabric, such as a table runner or square placemat, onto the center of the glass table. Arrange framed pictures on top of the fabric. Stick to similar picture frame styles for visual continuity or create an eclectic display with multiple sizes and shapes.
Arrange pictures flat on the table top. Get a second layer of glass to serve as a new table top that’s in the same shape as the original one. Place it on top of the pictures and it holds them in place, allowing you to view the display through the glass.
Incorporate small framed pictures with other decorative tabletop accessories, such as a vase or sculpture. Place the larger accessories in the middle and surround them with a circle of pictures to create a centerpiece.
Line the glass table with a row of pictures in the same size frames. Space them evenly apart. Place identical accessories on either end of the picture row for a cohesive display.