When they crawl , don't be surprised if they are late walkers, my pediatrician told me some crawlers can get around pretty good and are not in a rush to walk. Both of my kids walked at @ 14 months but crawled since 8 months. Now when my second was 4 years old , she decided to have daddy remove her training wheels from the bike and has been riding on two wheels since, and riding a 20" bike since age 6.
BTW, those babies are beautiful. Enjoy them while you can!