Regarding measuring... what you can do is hold up your tablet pen and measure from the end of the pen, using your thumb to mark the length.
Glad it doesn't appear like I'm just disregarding all your advice

. Ahh ok that makes sense but it also brings up something that I'm probably doing wrong. I'm drawing a bit zoomed in (not much probably around 150%) so (in screen space) my drawing is a bit bigger then the refrence image I'm doing... Now that I understand the measuring this seems like it probably isn't a great idea... I'll start drawing at the same size as my refrence image and that way I can measure the two.
I did the same as yesterday only this time I drew a frame like Gimmy suggested over the refrence before doing the tracing to try to work on my volume stuff. Then I used this frame for drawing the final version (this felt pretty cheaty to me but I like the resulting image so...).
So the total process was...
draw frame from eye
draw figure based on frame (this is the yellow one)
trace frame
trace figure (this is the red one)
draw figure using traced frame (this is the green one)
hopefully that's an ok way to go about practicing.




Once again the first one is way off. I tried the legs for a while and then got frustrated and just kinda gave up, they turned out much better in the next 2 although they were mainly where I messed up in number 3. I think the measuring would have really helped with getting the legs right as the perspective ness of them through my eyes off but would not have tricked a ruler
