How to create and update Bulldog chess diagrams

I use png for graphics, jpeg for photos.

The way I showed is how I made the colored pieces.

I wish there was an easy way to do boards on mobile devices.

I had to change the ratio slightly for the real size.

Be patient, it takes time to make special graphics!

Those graphics look great! There's not many games where two pieces are allowed on the same square so this is cool! I think the spirit possessing another piece is another example (but you don't really see two pieces in the same square). Excellent new pieces!

Someday someone will get an event in event chess that enables a piece to stand on top of rooks. That would require some new graphics, but luckily it has not happened yet 

Is there a way to do it on a mobile device?

You could update diagrams when you are at home on your computer, and when you're traveling just post moves.

I never am at a computer.

And your opponent?

He guys and girls if 1000 people like Bulldog chess and only 10 have a computer then by all Houston We Have A Problem. 

IN #17 MARTIN0 MENTIONED AN ONLINE IMAGE EDITOR THAT COULD DO THE TRICK 

I have chess.com in mobile, so I haven’t Paint. What I have to do?

Unfortunately I don't think you can use a small mobile device to update graphics. The screen is too small to run graphical software. A tablet might work, but not a cell phone.

Do you have a mobile version?