I never switch media halfway through unless I see a big problem developing with the picture and think that switching to a different medium is the solution.
I guess I'll sometimes start a picture, abandon it halfway through, and then come back to it months or years later and think "this would be better in pencil crayon". But at that point it's more like restarting than switching.
Hmm, yeah that makes sense. I've had a few where I leave for months (or years) to 'age' and then come back and say, "I should totally remake this...with something else." By then it does feel fresh, restarting as you say. *nod*
I tend to go with what I think would look right for the piece, so yes I switch up quite a lot, I've even restarted because something didn't work.
From personal experience if I am trying to do a watercolour/digital etc and just keep pushing and pushing til it fits the fit is never right, so it's best just to change your plan than keep ahead with one that isn't working.
Hmm, I see. I tend to over-plan so I don't have to restart something mid-way, but I think I'm being a bit OCD. I think you're right about changing mediums when it's needed, art should be about experimenting and expressing.
This new piece is now making me question (and want to experiment with) how I use my tools. Even if it fails to look good in either medium, I think I'll have learned much from it.
I always plan for 'real' pieces (not just glorified doodles) but sometimes it's not working. And instead of getting stressed and going "WELL I WANTED ACRYLICS!" I just go "ok let's try something else." Planning is good but sometimes a sketch or a test piece looks more free than the real thing, so I find the minute I'm cracking out the paints and not just sketching and thumbnailing I'm not planning anymore XD
I started doing 'sketches' in my sketchbook straight with acrylics or watercolours, no drawings first. You certainly do fuck up a bit sometimes, but it really teaches you to be more confident, and you can then apply that to your process. Part of why I often do switch is not because it doesn't look good but because my hand isn't obeying me that day but when I start with a new medium it just flows like it should. So why fight? XD