silver arowana or osteoglossum bicirrhosum.two tropical freshwater fish in their natural habitat. digital watercolor painting

activity america animal animals aquatic art artwork bicirrhosum biology blue brazil canvas climate closeup deep design digital diving drawn fish freshness freshwater generated graphic habitat illustration large mammal marines motion natural nature osteoglossum outdoors outline painting rainforest river science scuba south splattered sport swimming tail texture the themes tropical underwater vertebrate water watercolor wet wild