Layered Resin Paperweight

Hello, I had a couple questions about what i may have done wrong on this, I am currently using Envirotex Lite (I know its a little bad for casting mold but i’m still doing trial and error with my molds.) I have made about a 2×2 cube paper weight with this in about 5 layers. Knowing this resin is mostly for tables and smaller layers I tried to stay thinner thinking it would help, after about 4 days of Layering and 2 inclusions later. (a wasp in layer 2 a dried flower in 3) the last day I decided to lay a bit of a thicker layer, just to see if I can fill these a tad deeper. Turned out when de-molded that the thickest layer was the best, it had less bubbles and was clearer but I had more issues than just one layer.

Okay so now I that explained my Process of my layers my real issues lie here, I can literally see every layer i added. each layer became clearer the more resin I added, so the first layer is kinda just a lot of tiny micro bubbles then 2nd it gets a little better, 3rd and so on, Is there any way i can avoid this, can i get explained maybe why the first layer which is fairly thin is so full of bubbles but the thick layer is not so bad. If a picture could help explain this further I have plenty.

Thank you!!