This type of crochet needs somewhat of experience and of course Time.
I have kept it quite short giving the very detail of the pattern I have used here.
Hope this helps.
Rows are starting from bottom.
Row 1: 50 Chains
Row 2: 50 Double Crochet in 50 chains
50 Double Crochet on Other side to make Pocket.Do this upto Row 5.
Row 6: 7 chains,skip 5 chains
Single Crochet in next Chain-skip 3 chains-Single Crochet in next chain-3 chains-skip 3 chains-single crochet in next
Row 7:9 double crochet in chain 7
Single Crochet in 3 Chain loop-3 chains-Single Crochet in 3 chain loop-Repeat
Row 8:1 double Crochet in 1 double Crochet-1 chain-1 double crochet in 1 double crochet-upto 10 double crochet
Single crochet in next 3 chain loop-Repeat
Row 9:1 Single Crochet between 2 double Crochet triple Picot(3 chains and Single Crochet in first loop)
Complete the row
Complete the remaining purse in a similar manner.
For Better designing,Put a tissue layer inside it.
Deorate the Handle with the Similar design
Your Bag is now ready to use.