How would you suggest to improve this YU-GI-OH deck?

I'm low on time so i'll give you a brief tip. take out umi and put something else in. you got 3x legendary oceans, 1 umi in addition would be against the rules according to an official tip card you get out of bd1/db2/dr1/dr2 packs. they are treated as the same card despite differences in effects. if you really need to get out your ocean, use one more terraforming thought another sakuretsu would be way more welcomed since 4/40 chance on the first draw (not hand, draw [second draw is 4/39 if you didn't get terra or ocean on first and third draw is 4/38 if you didn't get it previous 2 draws, etc]) of the duel is more than a high enough chance to get your field card out early. Yes, 1x terra+ 3x ALO gives you that chance.