Good CB structure?

Here's the plausible deck list for my CB's I'm currently making.

Feel free to add comments and card suggestions.

Monsters: ( 20 )

*Sapphire Pegasus x2
*Rainbow Dragon
*CB- Ruby Carbuncle x3
*CB- Amber Mammoth x2
*CB- Topaz Tiger x2
*CB- Cobalt Eagle x2
*CB- Amethyst Cat x2
*CB- Emerald Turtle x2
*Dweller In The Depths x2
*Gravi-Crush Dragon x2

Magic: ( 11 )

*Rainbow Ruins x2
*Rare Value x2
*Crystal Abundance
*Crystal Release x3
*MST
*Crystal Blessing x2
*Rainbow Veil

Trap: ( 8 )

*Mirror Force
*Torrential Tribute
* Negate Attack
*Crystal Pair
*Crystal Raigeki x2
*Gem Flash Energy
*Rainbow Path

So far I've only done the monster part because I need to read the spell/trap CB support.

- Rainbow Dragon (not really needed)
+ CB Sapphire Pegasus (Its better to max this card)

- Dweller in the Depths (Its good but it can be a dead draw if you don't have any continuous spells. Also it leaves less space for other cards that can help alot more)
- Dweller in the Depths (Read the above comment)
+ Dragon Queen of Tragic Endings or Hamon, Lord of Striking Thunder
(Hamon is good if you want a quick beatstick and Dragon Queen is good because she is a good wall, can revive herself and she can give you an extra draw)
+ Destiny Hero Diamond Dude (Good with Crystal Abundance and Rare Value)

Well really I want to follow the cards Yohan (Jesse) uses in the anime, as this will be used for free pay, and cosplay purposes.

I'll keep the tips in mind though thanks!!