Sancta simplicitas - on simplicity in painting

I was advised to try painting in a simpler way.

Simple as I am, I began by looking up the word 'simple' in a dictionary.

In the paintings below, I chose to follow sections 1, 2.a, 2.b, 4.a, 4.c, 5.a, and 6. How simple is that?

 SIMPLE*)

1

:  free from guile :  innocent

2

a  :  free from vanity :  modest

b  :  free from ostentation or display <a simple outfit>

3

:  of humble origin or modest position <a simple farmer>

4

a  :  lacking in knowledge or expertise <a simple amateur of the arts>

b (1)  :  stupid (2)  :  mentally retarded 

c  :  not socially or culturally sophisticated :  naive; also  :  credulous

5

a  :  sheer, unmixed <simple honesty>

b  :  free of secondary complications <a simple vitamin deficiency>

c (1)  :  having only one main clause and no subordinate clauses <a simple sentence> (2)  of a subject or predicate  :  having no modifiers, complements, or objects 

d  :  constituting a basic element :  fundamental

e  :  not made up of many like units <a simple eye>

6

:  free from elaboration or figuration <simple harmony>

7

a (1)  :  not subdivided into branches or leaflets <a simple stem> <a simpleleaf> (2)  :  consisting of a single carpel (3)  :  developing from a single ovary <a simple fruit>

b  :  controlled by a single gene <simple inherited characters>

8

:  not limited or restricted :  unconditional <a simple obligation>

Origin of SIMPLE

Middle English, from Anglo-French, from Medieval Latin simplus, alteration of Latin simplic-, simplex single, having one ingredient, plain, from sem-, sim- one + -plic-, -plex -fold — more at same, -fold

First Known Use: 13th century

Just another lost angel. Watercolour on paper, 2015.

I think that you know what to do. Watercolour on paper, 2015.

*) Definition of "simple." Merriam-Webster.com. 2015. http://www.merriam-webster.com (copied 5 April 2015).
PS. Eeva, thank you for your inspiring advice!