Here is simple visualization to look into the past five trades result and plot the values over the chart which gives a quick view on how the strategy performed in the last five trades. In this AFL example we had created the dashboard for simple MACD crossover. And the dashboard doesnt include current open positions and only include last five closed positions.
Here is a little Bid Vs Ask Dashboard for Amibroker users which helps to monitor the Bid-Ask Spread during live trading. In a highly liquid market the Bid Ask spread difference will be very thin whereas in a illiquid script the Bid-Ask spread get wider due to less number of buyers and sellers.