How can I put a picture in a shaker type mold

Every time I put a picture/card in a silicone shaker type mold I’m having the issue of either air bubbles between the picture and the first layer of resin I lay, or if I put it in the resin before it’s fully set the picture sinks unevenly into the resin but I mostly have issues with the bubbles, since I have to pour the first layer of resin then add the picture flat downwards, then next layer of resin I cant check to see if there’s space btwn the resin and card that creates the air bubbles. How can I stop the bubbles or the unleveled picture in my resin? I’ve asked others in IG but no ones helps and i keep ruining pictures 😭 thank you! -heather