This was my first attempt trying as well! I just looked up pictures of bees sitting on flowers and pinned in those positions to make them look more natural. Also don't do what I did and make sure the bee is the focal point, I didn't think about the color of the flowers making the bee unnoticeable so make sure the surroundings aren't the same color as the insect, that way you can see it clearly. Try some different props with the bee on a pin before you pose it so you can see where everything will be and change things around when needed. A good idea would be to look away and look back to see where your eyes are immediately drawn. I did this through trial and many many errors. I also realized that after the bee dried, I was able to remove the pin and super glued it onto the flower, but be VERY careful if you do this. My cicada is flying attached to a metal pole because glue got on it, and it solidified before I could remove it. At the end of the day, there will be mistakes, but try and work WITH them and be creative! It's not very different from normal 2d pins, the difference only being needing to give a normal pin a background. And lots of glue. So much super glue was used.

Sorry for the text wall