Looks great, a nice big group of barbs always looks good in a planted tank. Also RTB Sharks are great fish. I have one by himself in my 50G tank with lots of loaches and some rainbows and he spends all day browsing the rocks and substrate for food, so fun to watch
Are you planning on getting anything else? I think a nice group of corys, a small type of syno (petricola or UD) or maybe a nice group of loaches would grow great in that tank