77+ and AJ+ for UTG's range? Are you on drugs?
On button here i think 99+ and AQ+ is the perfect calling range.

I fold anything under QQ here and probabally even AK. Blinds are pretty small.

My thoughts:

UTG should be pushing
KJ+, A7+, 55+
Button should be calling:
99+ AJ+
SB calls QQ+ maybe AK

BB calls 1010+ AQ+