showing how similar the canopies were

yet the reader may note many subtle diferences between the types.
1) the top (with reference to the rest of the fuselage) of the canopy seems the same on both models (later La5FN and both La7's) yet the bottom of the canopy seems slightly lower on the La7 sketches
2) the width of the cockpit on the La5FN (M) seems slightly less than the La7 (E)
3) the belly or under cockpit section of the La5FN seems slightly deeper than the La7
I have no data to corroborate these differences and so would discount them to "artistic licence" until better informed.
It is true that the fuselage side panels forward of the cockpit were sloped differently on the La7 to the La5FN to stream line them better. This may have required some re jigging of the forward cockpit ribs.
4) the wing fillets are of course totally different