you have some nice work already. Sometimes I get a small lag here only when I have other windows open. Good luck drawing here, you do nice work.
Art washes away from the soul the dust of everyday life. -- Pablo Picasso
... looks like it is done with marker pen.
If you are having problems with lag on your PC try clearing your browser cache - look for the tools option for which ever browser you are using and choose to clear
If that doesn't resolve it you are probably short of RAM. Having said that I have a low spec computer and I never have any problems with lag on Queeky.
There are two ways of spreading light: to be the candle or the mirror that reflects it. Edith Wharton