Formal portraits are usually scary paintings to create - well, for me anyway! Even if you've had previous successes in painting people to actually look like themselves, it's always a fresh challenge and a fresh risk that things might just not come out as they should, and be difficult or well nigh impossible to correct. One of the tricks is to take a lot of time over it, considering each stage and getting used to it before you progress to the next stage. This gives you time to correct errors before it's too late.
This is where I began:
The image below is where I'm at right now ... needing to work more on his hair and face but needing paint to dry before I go at it again. His shirt is also in the "being considered" category and is likely to be toned down a wee bit - but I'll only know whether that is necessary or not, and by how much, once I've completed his suit. It's a constant juggle and puzzle, waiting for the stage ahead to be put in place before you know how to complete the stage before it.
You can find the full process from beginning to end - well, where I'm at right now anyway - on the Painting Progression page on Facebook : www.facebook.com/PaintingProgression/