Aloha noob

You can relax those gals are quite healthy.
The minor tip browning is of no consequence.
And for 25 days the buds are about right.
They won't start swelling until about the 7th week.

They may take a bit longer to mature than you had planned.
Those thin leaves tell me that she's Sativa dominate.
Could take 12 to 16 weeks to fully ripen.

All-together? Nice job!
Now, what's required is patience.

Grow on,
Weezard