This cake was made as a trial cake, practiced it for a kids party before I make the real one for the wedding next week since it has been a while since i have made a wedding cake .... need your comments and advice *please*

Tried out different flavor combinations, and so the tiers turned out differently ... the top is chocolate cake, snickers filling, almond icing, middle is WASC with lemon curd filling and lemon icing, and bottom is pineapple with coconut filling and maple icing.

The middle (WASC with lemon curd filling, lemon icing) was the most popular flavor BUT the cake bulged and was sliding, so if you can see it turned out slightly lopsided ... help! any recommendations to avoid these (2) problems, specificically when using lemon curd as a filling?

Lastly, any advice for the rose arrangement would be appreciated- would really like to make the roses more open and beautiful, any advice is appreciated!!! Thanks!